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Saturday, February 26, 2011
Reading List: Singularity Sky
- Stross, Charles. Singularity Sky. New York: Ace, 2003. ISBN 978-0-441-01179-7.
-
Writing science fiction about a society undergoing a
technological singularity or about humans living
in a post-singularity society is a daunting task. By its
very definition, a singularity is an event beyond which it is
impossible to extrapolate, yet extrapolation is the very essence of
science fiction. Straightforward (some would say naïve)
projection of present-day technological trends suggests that
some time around the middle of this century it will be possible,
for a cost around US$1000, to buy a computer with power equal to
that of all human brains now living on Earth, and that in that
single year alone more new information will be created than by all of
human civilisation up to that time. And that's just the start.
With intelligent machines designing their successors, the slow
random walk search of Darwinian evolution will be replaced by directed
Lamarckian teleological development, with a generation time which
may be measured in nanoseconds. The result will be an exponential
blow-off in intelligence which will almost instantaneously dwarf that
of humans by a factor at least equal to that between humans and insects.
The machine intelligences will rapidly converge upon the fundamental
limits of computation and cognition imposed by the laws of physics,
which are so far beyond anything in the human experience we simply
lack the hardware and software to comprehend what their capabilities
might be and what they will be motivated to do with them. Trying to
“put yourself into the head” of one of these ultimate
intellects, which some people believe may emerge within the
lifetimes of people alive today, is as impossible as asking
C. elegans
to comprehend
quantum field theory.
In this novel the author sets out to both describe the
lives of humans, augmented humans, and post-humans centuries after
a mid-21st century singularity on Earth, and also show what happens
to a society which has
deliberately
relinquished technologies it deems “dangerous” to the
established order (other than those, of course, which the ruling
class find useful in keeping the serfs in their place) when the
singularity comes knocking at the door.
When the singularity occurred on Earth, the almost-instantaneously emerging
super-intellect called the Eschaton departed the planet toward
the stars. Simultaneously, nine-tenths of Earth's population
vanished overnight, and those left behind, after a period of chaos,
found that with the end of scarcity brought about by “cornucopia
machines” produced in the first phase of the singularity, they
could dispense with anachronisms such as economic systems and
government, the only vestige of which was the United Nations, which had
been taken over by the
IETF
and was essentially a standards body. A century later, after humans
achieved faster than light travel, they began to discover that the
Eschaton had relocated 90% of Earth's population to habitable worlds
around various stars and left them to develop in their own independent
directions, guided only by this message from the Eschaton, inscribed on
a monument on each world.
I am the Eschaton. I am not your god.
“Or else” ranged from slamming relativistic impactors into misbehaving planets to detonating artificial supernovæ to sterilise an entire interstellar neighbourhood whose inhabitants were up to some mischief which risked spreading. While the “Big E” usually remained off stage, meddling in technologies which might threaten its own existence (for example, time travel to back before its emergence on Earth to prevent the singularity) brought a swift and ruthless response with no more remorse than humans feel over massacring Saccharomyces cerevisiae in the trillions to bake their daily bread. On Rochard's World, an outpost of the New Republic, everything was very much settled into a comfortable (for the ruling class) stasis, with technology for the masses arrested at something approximating the Victorian era, and the advanced stuff (interstellar travel, superluminal communication) imported from Earth and restricted to managing the modest empire to which they belong and suppressing any uprising. Then the Festival arrived. As with most things post-singularity, the Festival is difficult to describe—imagine how incomprehensible it must appear to a society whose development has been wilfully arrested at the railroad era. Wafted from star to star in starwisp probes, upon arrival its nanotechnological payload unpacks itself, disassembles bodies in the outer reaches of its destination star system, and instantiates the information it carries into the hardware and beings to carry out its mission. On a planet with sentient life, things immediately begin to become extremely weird. Mobile telephones rain from the sky which offer those who pick them up anything they ask for in return for a story or bit of information which is novel to the Festival. Within a day or so, the entire social and economic structure is upended as cornucopia machines, talking bunnies, farms that float in the air, mountains of gold and diamonds, houses that walk around on chicken legs, and things which words fail to describe become commonplace in a landscape that changes from moment to moment. The Festival, much like a eucaryotic organism which has accreted a collection of retroviruses in its genome over time, is host to a multitude of hangers-on which range from the absurd to the menacing: pie-throwing zombies, giant sentient naked mole rats, and “headlaunchers” which infect humans, devour their bodies, and propel their brains into space to be uploaded into the Festival. Needless to say, what ensues is somewhat chaotic. Meanwhile, news of these events has arrived at the home world of the New Republic, and a risky mission is mounted, skating on the very edge of the Eschaton's prohibition on causality violation, to put an end to the Festival's incursion and restore order on Rochard's World. Two envoys from Earth, technician Martin Springfield and U.N. arms inspector Rachel Mansour, accompany the expedition, the first to install and maintain the special technology the Republic has purchased from the Earth and the second, empowered by the terms under which Earth technology has been acquired, to verify that it is not used in a manner which might bring the New Republic or Earth into the sights of the Big E. This is a well-crafted tale which leaves the reader with an impression of just how disruptive a technological singularity will be and, especially, how fast everything happens once the exponential take-off point is reached. The shifts in viewpoint are sometimes uneven—focusing on one subplot for an extended period and then abruptly jumping to another where things have radically changed in the interim, but that may be deliberate in an effort to convey how fluid the situation is in such circumstances. Stross also makes excellent use of understated humour throughout: Burya Rubenstein, the anarcho-Leninist revolutionary who sees his entire socio-economic utopia come and go within a couple of days, much faster than his newly-installed party-line propaganda brain implants can adapt, is one of many delightful characters you'll encounter along the way. There is a sequel, which I look forward to reading.
I am descended from you, and I exist in your future.
Thou shalt not violate causality within my historic light cone. Or else.
Wednesday, February 23, 2011
United Arab Republic 2.0
With the ongoing unrest in Egypt, there has been speculation that the military, which is now in charge, might be tempted to launch a military adventure in order to unite the country behind them and position those advocating a pluralistic society as unpatriotic in a time of crisis. Most of the worry has been about a potential conflict with Israel, but with the rapidly deteriorating situation in Libya, what if Egypt's present rulers decided to roll the tanks West instead of East? This move would be taken “in order to secure the oil fields” and “in solidarity with our Arab brethren, who deserve protection from the tyrannical regime that has exploited them for so long”. Pan-arabism has been a powerful force in the Arab world since World War II. In 1958, Nasser concluded a merger between Egypt and Syria to form the United Arab Republic (UAR), and factions in Iraq supported their country's joining the union. Rather than expand, the UAR collapsed in 1961 with the secession of Syria, although Egypt continued to call itself the UAR until 1971, when it officially changed its name back to “Egypt”, which is what everybody had been calling it all along. Still, pan-arabism remained a popular sentiment in the region, and in the 1970s there were negotiations, initiated and supported by Libyan dictator Muammar Qadhafi, aimed at establishing a new union including his country, Egypt, the Sudan, and perhaps Syria. As Qadhafi was increasingly seen to be a dangerously irrational actor on the international scene and Sadat in Egypt moved to closely aligning his country with the United States, nothing came of these talks. Looked upon as a business merger, a new union between Libya and Egypt (UAR 2.0) seems a “pretty sweet deal”. Libya's 6.4 million people would add less than 10% to Egypt's 80.4 million, and since Egypt's trade has been close to in balance recently (although it will surely take a hit in the near future until tourists feel it's safe to come back), Libya's 15.5 billion dollar trade surplus (almost entirely from oil and gas exports) would put the union squarely in the black. Libya has gold and foreign currency reserves of US$107 billion and just 6.3 billion in debt (3.3% of GDP), and without exhausting its reserves could pay off Egypt's entire external debt of 30.6 billion dollars along with its own and become a debt-free nation. Using a portion of the union's oil revenue to develop Egypt's poorly exploited agricultural potential could allow the union to become largely self-sufficient in food and resume Egypt's traditional rôle as breadbasket of the Mediterranean, further putting UAR 2.0 into the black and improving the standard of living of its population. Both countries share a language, predominant religion, and ethnic identification. Finally, Egypt has for millennia profited from tourism drawn to its antiquities sites and has become competent in monetising their attraction. Libya is rich in such sites, but few tourists visit them due to worries about safety and the primitive conditions in many of them. Egypt's experience could turn those sites into money makers as well. With Egypt's population, educational and cultural institutions, and military might combined with Libya's oil reserves and export revenue, the union would be the preeminent regional power. Still looking at this as a business proposition, let's suppose that even as things spiral further out of control in Libya, those in power couldn't be persuaded of the advantages of UAR 2.0. What would a “hostile takeover” by Egypt entail? Well, one never knows in such matters, but just looking at the statistics, it looks like it would be a walk in the park or, more to the point, a dash across the desert. Libya has an army of around 50,000 men, half volunteers and half conscripts, equipped mostly with aging gear bought from the ex-Soviet Union in the 1970s and 80s. Many of the aircraft in the Libyan Air Force are believed not to be in serviceable condition. Egypt, by comparison, has an army of 468,000 on active duty with another 480,000 in the reserves and fields (thanks to U.S. taxpayers) 1005 M1A1 Abrams main battle tanks which it produces indigenously under license. The Abrams is considered the preeminent tank in the world, and in addition Egypt also has 1435 M60A3 Patton tanks. And recall that, as generals Rommel and Montgomery demonstrated some years ago, the desert between Cairo and Tripoli is tank country. In the air, Egypt has 240 up to date F-16s. It is difficult to imagine a military conflict between the two nations lasting very long, and if the Egyptians prepare the propaganda battlefield so they are perceived as liberators, they may find support from the broad population and only a small number of regime hard-liners to suppress. UAR 2.0—you heard it here first.Tuesday, February 22, 2011
Bugs: Ugly Gotcha Importing EPUB Books into iTunes (iTunesMetadata.plist manifest)
Today I posted the final public release of the EPUB edition of The Hacker's Diet. For details of this edition, see my earlier note announcing the release of the test edition a month ago. In the process of refining this document for publication, I stumbled into a hideous gotcha in the process of importing an EPUB book into iTunes, thence to be transferred to a reading device such as an iPad or iPhone equipped with the iBooks application. Suppose you've developed an electronic book on your computer in the EPUB format, checked it with various EPUB reader software on that machine, and run it past an EPUB validator with no problems reported. As the last step in the quality assurance process, you want to make sure the formatting is correct when viewed with Apple's iBooks application, so you drag your .epub file into iTunes, then synchronise your reading devices with it. Happily, everything looks good, so you then install the just-tested .epub file on your Web server or submit it to the publisher who will offer it for sale to the public. Before long, you start to get messages from readers who downloaded the book and, being cautious, submitted it to the same validator you used before transferring it to their reader devices, and discovered that it failed validation. You then re-validate the file on your server—the same one which passed validation before—and discover, to your dismay, that it now fails, due to the presence of a file in the top level directory of the archive named iTunesMetadata.plist which isn't listed in the manifest for the archive. How could this have happened? When I figured out what was going on, I could scarcely believe it. One of the principal reasons people pay a premium for Apple gear is that they usually get the important stuff right, even in early releases. What we have here is a breathtaking example of when they don't. When you import an EPUB book, iTunes makes a copy of the .epub archive in its own library directory structure and, in the process, adds a file named iTunesMetadata.plist to the archive which contains metadata describing the file. It does not add this file to the EPUB manifest. So far, so good—Apple is perfectly free to add information to documents it's managing within its own application's database. But it does't stop there: iTunes then goes and modifies the document you're importing as well, including the iTunesMetadata.plist file in it and thereby rendering it an invalid EPUB archive. This is done without any warning to the user that the input file is being modified. If you subsequently publish this modified file, you're providing your customers an invalid and defective product. It may very well work, but if they go to the trouble of validating it themselves, they're going to be getting in touch with you. As long at this bug remains in place, it is essential that EPUB book developers always copy documents they're about to test by importing them into iTunes into a throwaway document, import that, and then delete it immediately after its importation. Never import an EPUB file into iTunes which you intend to use in any other manner subsequently.Friday, February 18, 2011
Reading List: Fooled by Randomness
- Taleb, Nassim Nicholas. Fooled by Randomness. 2nd. ed. New York: Random House, [2004] 2005. ISBN 978-0-8129-7521-5.
-
This book, which preceded the author's bestselling
The Black Swan (January 2009),
explores a more general topic: randomness and, in particular,
how humans perceive and often misperceive its influence in their
lives. As with all of Taleb's work, it is simultaneously
quirky, immensely entertaining, and so rich in wisdom and insights
that you can't possible absorb them all in a single reading.
The author's central thesis, illustrated from real-world
examples, tests you perform on yourself, and scholarship in fields
ranging from philosophy to neurobiology, is that the human brain
evolved in an environment in which assessment of probabilities
(and especially conditional probabilities) and nonlinear outcomes
was unimportant to reproductive success, and consequently our brains
adapted to make decisions according to a set of modular rules
called “heuristics”, which researchers have begun to
tease out by experimentation. While our brains are capable of
abstract thinking and, with the investment of time required to
master it, mathematical reasoning about probabilities, the parts
of the brain we use to make many of the important decisions in
our lives are the much older and more instinctual parts from which
our emotions spring. This means that otherwise apparently rational
people may do things which, if looked at dispassionately, appear
completely insane and against their rational self-interest. This
is particularly apparent in the world of finance, in which the
author has spent much of his career, and which offers abundant
examples of individual and collective delusional behaviour both
before and after the publication of this work.
But let's step back from the arcane world of
financial
derivatives and consider a much simpler and easier to
comprehend investment proposition: Russian roulette.
A diabolical billionaire makes the following proposition:
play a round of Russian roulette (put one cartridge in a six
shot revolver, spin the cylinder to randomise its position,
put the gun to your temple and pull the trigger). If the
gun goes off, you don't receive any payoff and besides, you're
dead. If there's just the click of the hammer falling on an
empty chamber, you receive one million dollars. Further, as
a winner, you're invited to play again on the same date next
year, when the payout if you win will be increased by 25%,
and so on in subsequent years as long as you wish to keep on
playing. You can quit at any time and keep your winnings.
Now suppose a hundred people sign up for this proposition, begin
to play the game year after year, and none chooses to take their
winnings and walk away from the table. (For connoisseurs
of Russian roulette, this is the variety of the game in which the
cylinder is spun before each shot, not where the live round continues
to advance each time the hammer drops on an empty chamber: in that case
there would be no survivors beyond the sixth round.) For each round,
on average, 1/6 of the players are killed and out of the game, reducing
the number who play next year. Out of the original 100 players in
the first round, one would expect, on average, around 83 survivors
to participate in the second round, where the payoff will be 1.25 million.
What do we have, then, after ten years of this game? Again, on average,
we expect around 16 survivors, each of whom will be paid more than seven
million dollars for the tenth round alone, and who will have collected a
total of more than 33 million dollars over the ten year period. If the
game were to go on for twenty years, we would expect around 3 survivors
from the original hundred, each of whom would have “earned”
more than a third of a billion dollars each.
Would you expect these people to be regular guests on cable
business channels, sought out by reporters from financial publications
for their “hot hand insights on Russian roulette”, or
lionised for their consistent and rapidly rising financial results?
No—they would be immediately recognised as precisely
what they were: lucky (and consequently very wealthy) fools who,
each year they continue to play the game, run the same 1 in 6 risk of
blowing their brains out.
Keep this Russian roulette analogy in mind the next time you see
an interview with the “sizzling hot” hedge fund manager who
has managed to obtain 25% annual return for his investors over the last
five years, or when your broker pitches a mutual fund with a “great track
record”, or you read the biography of a businessman or investor who
always seems to have made the “right call” at the right time.
All of these are circumstances in which randomness, and hence luck, plays
an important part. Just as with Russian roulette, there will inevitably
be big winners with a great “track record”, and they're the
only ones you'll see because the losers have dropped out of the game (and
even if they haven't yet they aren't newsworthy). So the question you have to ask yourself
is not how great the track record of a given individual is, but rather the size
of the original cohort from which the individual was selected at the
start of the period of the track record. The rate hedge fund managers
“blow up” and lose all of their investors' money in one disastrous
market excursion is less than that of the players blown away in Russian
roulette, but not all that much. There are a lot of trading strategies
which will yield high and consistent returns until they don't, at
which time they suffer sudden and disastrous losses which are always
reported as “unexpected”. Unexpected by the geniuses who
devised the strategy, the fools who put up the money to back it, and the
clueless journalists who report the debacle, but entirely predictable to
anybody who modelled the risks being run in the light of actual behaviour of
markets, not some egghead's ideas of how they “should” behave.
Shall we try another? You go to your doctor for a routine physical, and
as part of the laboratory work on your blood, she orders a screening test
for a rare but serious disease which afflicts only one person in a thousand
but which can be treated if detected early. The screening test has a 5% false
positive rate (in 5% of the people tested who do not actually have the
disease, it erroneously says that they do) and a 0% false negative rate (if
you have the disease, the test will always report that you do). You return
to the doctor's office for the follow-up visit and she tells you that you
tested positive for the disease. What is the probability you actually have
it?
Spoiler warning: Plot and/or ending details follow.Did you answer 95%? If you did, you're among the large majority of people, not just among the general population but also practising clinicians, who come to the same conclusion. And you'd be just as wrong as them. In fact, the odds you have the disease are a little less than 2%. Here's how it works. Let's assume an ensemble of 10,000 randomly selected people are tested. On average, ten of these people will have the disease, and all of them will test positive for it (no false negatives). But among that population, 500 people who do not have the disease will also test positive due to the 5% false positive rate of the test. That means that, on average (it gets tedious repeating this, but the natterers will be all over me if I don't do so in every instance), there will be, of 10,000 people tested, a total of 510 positive results, of which 10 actually have the disease. Hence, if you're the recipient of a positive test result, the probability you have the disease is 10/510, or a tad less than 2%. So, before embarking upon a demanding and potentially dangerous treatment regime, you're well advised to get some other independent tests to confirm that you are actually afflicted.In making important decisions in life, we often rely upon information from past performance and reputation without taking into account how much those results may be affected by randomness, luck, and the “survivor effect” (the Russian roulette players who brag of their success in the game are necessarily those who aren't yet dead). When choosing a dentist, you can be pretty sure that a practitioner who is recommended by a variety of his patients whom you respect will do an excellent job drilling your teeth. But this is not the case when choosing an oncologist, since all of the people who give him glowing endorsements are necessarily those who did not die under his care, even if their survival is due to spontaneous remission instead of the treatment they received. In such a situation, you need to, as it were, interview the dead alongside the survivors, or, that being difficult, compare the actual rate of survival among comparable patients with the same condition. Even when we make decisions with our higher cognitive facilities rather than animal instincts, it's still easy to get it wrong. While the mathematics of probability and statistics have been put into a completely rigorous form, there are assumptions in how they are applied to real world situations which can lead to the kinds of calamities one reads about regularly in the financial press. One of the reasons physical scientists transmogrify so easily into Wall Street “quants” is that they are trained and entirely comfortable with statistical tools and probabilistic analysis. The reason they so frequently run off the cliff, taking their clients' fortunes in the trailer behind them, is that nature doesn't change the rules, nor does she cheat. Most physical processes will exhibit well behaved Gaussian or Poisson distributions, with outliers making a vanishingly small contribution to mean and median values. In financial markets and other human systems none of these conditions obtain: the rules change all the time, and often change profoundly before more than a few participants even perceive they have; any action in the market will provoke a reaction by other actors, often nonlinear and with unpredictable delays; and in human systems the Pareto and other wildly non-Gaussian power law distributions are often the norm. We live in a world in which randomness reigns in many domains, and where we are bombarded with “news and information” which is probably in excess of 99% noise to 1% signal, with no obvious way to extract the signal except with the benefit of hindsight, which doesn't help in making decisions on what to do today. This book will dramatically deepen your appreciation of this dilemma in our everyday lives, and provide a philosophical foundation for accepting the rôle randomness and luck plays in the world, and how, looked at with the right kind of eyes (and investment strategy) randomness can be your friend.Spoilers end here.
Wednesday, February 16, 2011
Fourmilab SSL/HTTPS security certificate updated
After the usual “boot in the face forever” customer experience, Fourmilab's SSL/HTTPS security certificate has been renewed through 2016-04-07 and installed on the site. You can test and examine the details of this certificate by making a secure connection to Fourmilab and using your browser's procedure to query the security of the connection and examine the site certificate. As this is a non-commercial site and no money changes hands here, I've opted for the least expensive “Domain Validated SSL” option, as with the certificates used here since 2006. You're assured that you are indeed talking to the genuine www.fourmilab.ch and that your communications with the site are encrypted, but beyond that no further authentication is provided. Users of Web services such as The Hacker's Diet Online and HotBits which use secure connections by default should migrate to the new certificate seamlessly. If you have trouble, let me know with the Feedback button, but there's little I can do about it since the new certificate, like the ones which preceded it, was purchased from Thawte, one of the most accepted (if simultaneously expensive and irritating to do business with) Certificate Authorities. I'm currently showing 5447 HTTPS connections since the new certificate was installed, so the absence of plaintive E-mails reporting problems indicates they are either rare or that Fourmilab's users are atypically tolerant of difficulties today. The good news for all of us is that if this keeps on working, we needn't revisit this particular speed bump until 2016. Don't get me onto selling handfuls of random bits for hundreds of dollars a year. Here, we give 'em away!Thursday, February 10, 2011
Reading List: State of the Union
- Thor, Brad. State of the Union. New York: Pocket Books, 2004. ISBN 978-0-7434-3678-6.
-
This is the third in the author's Scot Harvath series, which began
with
The Lions of Lucerne (October 2010).
How refreshing to read a post-Cold War thriller in which the
Russkies are threatening nuclear terror to reassert a strategy
of global hegemony which only went underground with the collapse
of the Soviet Union.
Whatever happened, anyway, to all of those
suitcase nukes
which multiple sources said went missing when the Soviet Union
dissolved, and which some Soviet defectors claimed had been smuggled
into caches in the U.S and Europe to be used as a last-ditch deterrent
should war be imminent? Suppose a hard core of ex-Soviet military officers,
with the implicit approval of the Russian government, were to attempt a
“Hail Mary” pass to win the Cold War in one masterstroke?
I have nattered in reviews of previous novels in this series about
Thor's gradually mastering the genre of the thriller. No more—with
this one he's entirely up to speed, and it just gets better from here on.
Not only are we treated to a Cold War scenario, the novel is written in the
style of a period espionage novel in which nothing may be what it appears,
and the reader, along with the principal characters, is entirely in the
fog as to what is actually going on for the first quarter of the book.
Quibbles? Yes, I have a few. In his quest for authenticity, the author often
pens prose which comes across like Hollywood product placement:
… The team was outfitted in black, fire-retardant Nomex fatigues, HellStorm tactical assault gloves, and First Choice body armor. Included with the cache laid out by the armorer, were several newly arrived futuristic .40-caliber Beretta CX4 Storm carbines, as well as Model 96 Beretta Vertex pistols, also in .40 caliber. There was something about being able to interchange their magazines that Harvath found very comforting. A Picatinny rail system allowed him to outfit the CX4 Storm with an under-mounted laser sight and an above-mounted Leupold scope. …
Ka ching! Ka ching! Ka ching! I have no idea if the author or publisher were paid for mentioning this most excellent gear for breaking things and killing bad guys, but that's how it reads. But, hey, what's not to like about a novel which includes action scenes on a Russian nuclear powered icebreaker in the Arctic? Been there—done that!
Sunday, February 6, 2011
Reading List: The Reagan Diaries
- Reagan, Ronald. The Reagan Diaries. Edited by Douglas Brinkley. New York: Harper Perennial, 2007. ISBN 978-0-06-155833-7.
- What's it actually like to be the president of the United States? There is very little first-person testimony on this topic: among American presidents, only Washington, John Quincy Adams, Polk, and Hayes kept comprehensive diaries prior to the twentieth century, and the present work, an abridged edition of the voluminous diaries of Ronald Reagan, was believed, at the time of its publication, to be the only personal, complete, and contemporaneous account of a presidency in the twentieth century. Since its publication, a book purporting to be the White House diaries of Jimmy Carter has been published, but even if you believe the content, who cares about the account of the presidency of a feckless crapweasel whose damage to the republic redounds unto the present day? Back in the epoch, the media (a couple of decades later to become the legacy media), portrayed Reagan as a genial dunce, bumbling through his presidency at the direction of his ideological aides. That illusion is dispelled in the first ten pages of these contemporaneous diary entries. In these pages, rife with misspellings (he jokes to himself that he always spells the Libyan dictator's name the last way he saw it spelt in the newspaper, and probably ended up with at least a dozen different spellings) and apostrophe abuse, you experience Reagan not writing for historians but rather memos to file about the decisions he was making from day to day. As somebody who was unfortunate enough to spend a brief part of his life as CEO of an S&P 500 company in the Reagan years, the ability of Reagan, almost forty years my senior, to keep dozens of balls in the air, multitask among grave matters of national security and routine paperwork, meetings with heads of states of inconsequential countries, criminal investigations of his subordinates, and schmooze with politicians staunchly opposed to his legislative agenda to win the votes needed to enact the parts he deemed most important is simply breathtaking. Here we see a chief executive, honed by eight years as governor of California, at the top of his game, deftly out-maneuvering his opponents in Congress not, as the media would have you believe, by his skills in communicating directly to the people (although that played a part), but mostly by plain old politics: faking to the left and then scoring the point from the right. Reading these abridged but otherwise unedited diary entries gives lie to any claim that Reagan was in any way intellectually impaired or unengaged at any point of his presidency. This is a master politician getting done what he can in the prevailing political landscape and committing both his victories and teeth-gritting compromises to paper the very day they occurred. One of the most stunning realisations I took away from this book is that when Reagan came to office, he looked upon his opposition in the Congress and the executive bureaucracy as people who shared his love of the country and hope for its future, but who simply disagreed as to the best course to achieve their shared goals. You can see it slowly dawning upon Reagan, as year followed year, that although there were committed New Dealers and Cold War Democrats among his opposition, there was a growing movement, both within the bureaucracy and among elected officials, who actually wanted to bring America down—if not to actually caputulate to Soviet hegemony, at least to take it down from superpower status to a peer of others in the “international community”. Could Reagan have imagined that the day would come when a president who bought into this agenda might actually sit in the Oval Office? Of course: Reagan was well-acquainted with worst case scenarios. The Kindle edition is generally well-produced, but in lieu of a proper index substitutes a lengthy and entirely useless list of “searchable terms” which are not linked in any way to their appearances in the text. Today is the hundredth anniversary of the birth of Ronald Reagan.