Rome fell fast, and so did we

The fall of Rome has obviously been a topic of much interest and discussion. It is, after all, a conversation about the fall of civilization as we knew it.

If you read my blog you are probably aware that I lean toward a thesis of genuine and rapid fall. One of the most revelatory books I’ve read in the past 20 years is Bryan Ward-Perkins’ The Fall of Rome: And the End of Civilization. Ward-Perkins’ tale is an apocalyptic one. The material basis of Roman civilization the West collapsed. Perhaps the most relevant and evocative fact for me is that pollution due to manufacturing production in England did not match that of the Roman period until the industrial revolution. Though the Roman economy never achieved the industrial revolution’s gains in productivity, it did attain a level of Smithian efficiency and interdependence on the margins of the factors of production.

From a totally different perspective Peter Heather in The Fall of the Roman Empire broadly agrees with Ward-Perkins’ contention. The Roman Empire fell, and it fell fast, and the imperial elites didn’t see it coming. Remember, the Roman Empire was dismembered and disordered during the “crisis of the third century”. Under Diocletian and his successors in the 4th century it came back to health and strength before the distress of the 5th century in the West. But at the time contemporaries did not view the shocks and exigencies of these decades as any more distressing then the events of the 3rd century, and the Eastern Empire around Constantinople was reasonably robust.

Ultimately though 476 was a coup de grace to the Western Empire. The Gothic wars tore apart the fabric of the Italian peninsula in the 6th century, and the substantive reality of the old empire faded away. There was no going back. Of course I’m well aware of the argument that the Roman world evolved, that it did not collapse. And Late Antiquity and its continuities with the Classical world, and how it bridged itself to the Medieval world, are fascinating. But I do not accept that the preservation of Roman motifs and ideals in the courts of barbarian German warlords is evidence that substantively nothing changed.

Much of it depends on how you weight material vs. ideological parameters. The idea of Rome cast a shadow centuries beyond its substantive material integrity. After, the Byzantines called themselves Romans until the conquest of their city-stateless in 1453. But no matter the name, they were not Romans as the Romans were in 400 A.D.

The theoretical context of all this is that it strikes me cultures can go through rapid nonlinear shocks which induce very quick and unexpected changes. In the human past this would often entail collapses and regressions. The “Dark Age” after the chaos of the late Bronze Age is a case in point. In one generation the citadel society of Mycenanean Greece disappeared across much its extant range. The gap between 1966 and 1969 in much of the West was arguably greater than between 1956 and 1966.

The United States today is the most powerful nation in the world. And our cultural centrality and ascendency is such that we don’t challenge our implicit position as the premier power in the world. But I believe that we’ve become a inward looking involuted culture. There’s no point in litigating this, and obviously I may be wrong. But too often we confuse our own petty internecine squabbles with the concerns of the world. The world is passing us by….

Open Thread, 7/3/2017

Reading The Enigma of Reason. Pretty good so far. Not incredibly surprising to me so far. To be clear, their argument is somewhat orthogonal to the whole ‘rationality’ debate you may be familiar with from Daniel Kahneman and Amos Tversky’s work (e.g., see Heuristics and Biases).

One of the major problems in analysis is that rationality, reflection and ratiocination, are slow and error prone. To get a sense of that, just read ancient Greek science. Eratosthenes may have calculated to within 1% of the true circumference of the world, but Aristotle’s speculations on the nature of reproduction were rather off.

You may be as clever as Eratosthenes, but most people are not. But you probably accept that the world is round and 24,901 miles around. If you are not American you probably are vague on miles anyway. But you know what the social consensus is, and you accept it because it seems reasonable.

One of the points in cultural evolution work is that a lot of the time rather than relying on your own intuition and or reason, it is far more effective and cognitively cheaper to follow social norms of your ingroup. I only bring this up because unfortunately many pathologies of our political and intellectual world today are not really pathologies. That is, they’re not bugs, but features.

But I do suspect that the human bias toward trusting social wisdom is less useful in a world as fast changing and protean as ours. The math is pretty clear that in a stable environment there is no gain to reinventing wheels, as opposed to learning and believing what always works. Where individual learning and cognition are useful is in a situation where parameters are changing constantly, and folk wisdom leads you astray.

The Languages of Political Islam in India c.1200–1800 is only $5.99 on Kindle. I have no idea how Amazon figures out which academic books to discount highly, and which not to, but it’s always something I keep an eye out for.

RV dwellers in Palo Alto neighborhood forced to motor on and a reflection by a Stanford post-doc how difficult it is to make ends meet. One response is “we need affordable housing.” The reality is that you don’t need anything targeted, and special-built housing for the poor inevitably is subject to shortages. What is needed is more housing. But for various reasons incumbents between San Francisco and San Jose don’t want development.

Viral NRA ad sparks controversy. People are very freaked out on my Twitter timeline (I mostly follow liberals since I mostly follow scientists). Some people are saying that this is white supremacy in action. At this point it is useful to step outside of your socio-political bubble. For the past few years the dominant Left discourse has suffused all injustice with the term “white supremacy” and “systemic racism.” At some point you desensitize people who aren’t already fully on board with you

If 2011’s Rise Of The Planet of the Apes was filmed today I wonder if CRISPR/Cas9 would play a role?

I will be filling up the #SMBE17 hashtag tomorrow.

Bringing Neanderthals to Life: The Sculptures of Elisabeth Daynès. Neanderthals are depicted as having straight hair and African hominins with wooly hair. Is this justified? Is wooly hair the ancestral state?

Since wooly hair is found in many disparate human populations it probably is ancestral. But it would be nice to have more than a hunch or phylogenetic inference based on extant distributions of the trait.

How much bigger Americans are in two generations

 

Average American Size 2015
 MenWomen
Height69.2 inches (175.8 cm)63.7 inches (161.8 cm)
Weight195.7 lbs (88.8 kg)168.5 lbs (76.4 kg)
Waist40 inches (101.5 cm)38.1 (96.9 cm)
   
Average American Size 1960
 MenWomen
Height68 inches (173 cm)63 inches (160 cm)
Weight166.3 lbs (75.3 kg)140 lbs (63.5 kg)

The film WALL-E came out in 2008, and at this point it seems already quaint. Remember, when WALL-E was in theaters smartphones were not ubiquitous. Today it is not abnormal for people in social situations to always have one eye on their phone, or for people to text each other in close proximity.

Another aspect of WALL-E is that it depicted future humans as obese unitard wearing consumers. If such a film came out in 2017 I do wonder if it would be accused of being fatphobic and fat-shaming. WALL-E‘s general critique of post-industrial gluttony seems to be spot on.

Some of this is on my mind because I’ve gained 5-10 pounds over the past year due to new jobs and a move. As some of you know I’ve been trying out the ketogenic diet. In just a few weeks I’ve shed enough water weight to make a difference.

I would recommend it to someone trying to kickstart a change in their lifestyle for a simple reason: it does take care of the satiety aspect. If you work long hours it reduces the urge to snack on something. But if you are a social eater it will be difficult for it to be sustainable. I’m going to go off the diet for SMBE.

After joining a gym recently I got a full body analysis of my fitness level. At 5’8 and at 165 pounds I feel rather large for me. My body fat percentage was estimate at around 17%, which sounds right (I fluctuate between 14 and 18 depending on my fitness level). Recently my waist has gone up to 31 inches from 29 or 30. But I was surprised that my percentiles were not that bad.

That’s because the average American man is rather overweight.

Look at the statistics above. You probably know this, but let’s reiterate: the average American woman in 2015 is heavier than the average American man in 1960.