Ignore the skeptics. America can still grow.

Summary: Can America no longer grow? Have we exhausted the potential for future technological progress? Let’s look at how far we have come and ask if the engines of progress that produced these wonders can no longer work for us.

“Innovation of new forms of society and technology. It is the key to our progress. It has allowed us to evolve from naked hunter-gatherers to the dominant species on this planet. This process is slow, normally taking hundreds or even thousands of years. But occasionally evolution leaps forward.”
— A slight tweak of Professor Xavier’s words from the title sequence of the movie “X-men”. These events are called “singularities”.

Has humanity’s growth story ended?
The singularities in our past.
The singularities in our future
For More Information.

(1) Has humanity’s growth story ended?

“I wonder if and when the law of large numbers begins to be relevant to that growth in the same way it’s relevant to a company’s growth rate. Should we expect growth rates to decline as world GDP gets larger?”
— An important question by Jeff Harbaugh in a comment to a previous post.

One reason Trump’s campaign has surprisingly caught fire is his simple call to “Make America Great”. No matter how delusionally conceived, at least he appears to realize the importance of fighting the multi-decade long slowing of America’s economic growth. Upper middle class greens mutter about the wrongness of growth. America’s poor grow restive as they see their chances for social mobility fade away. Others just despair, believing that rapid growth lies in our past but not in our future.

(2) The singularities in our past.

Our world is the result of singularities in our past. Fire, pottery, agriculture, metals, writing — giant leaps forward in technology. Too see how far humanity has come, imagine how our society would appear to our stone-age ancestors of 40,000 years ago. For one answer see “Cro-Magnon Communication” by Brad Delong (Prof Economics, Berkeley).

“The Twelve-Year-Old is on strike. She refuses to write more than one paragraph of a letter detailing her day to our pre-Neolithic Revolution ancestors. She says the idea is stupid because it cannot be done — the Singularity is not in our future but in our past. Nevertheless it is quite a good first paragraph:

“I was jigging to my iPod when my friend Noelle rode up in the front passenger seat of her family’s minivan. ‘Will your parents let you come see “Wedding Crashers“?’ she asked.”

“She has a point. ‘Jigging’ can be gotten across. And the East African Plains Ape social dynamics can be gotten across — friends, marriage, excessive parental control of the activities of adolescent females, et cetera (although not all of them: the idea of a “wedding crasher” is a very complicated concept to get across to a hunter-gatherer who has lived in a group of 40 or so her whole life).

“But the rest? Maybe I should have reversed the assignment: What kinds of science fiction would hunter-gatherers have written?”

For another perspective, shift forward in time to ~12,000 years ago, before the Neolithic singularity (e.g., the wheel, agriculture). Here is Pat Mathews’ entry in Brad Delong’s Early Holocene Epoch science fiction contest, with our distant ancestors describing a future unimaginable to them.

Shaman: I have foreseen a time when everybody can have all the meat, fat, and sweet stuff they can eat, and they all get fat.
Chief: You have had a vision of the Happy Hunting Grounds.
Shaman: It is considered a great and horrible problem! People go out of their way to eat leaves and grass and grains, and work very hard to look lean and brown.
Chief: You’ve been eating too many of those strange mushrooms, and are seeing everything backward.

Shift forward again to our most recent singularity — “the industrial revolution”. It ended in 1918. It was a singularity in ever sense, as explained in “The Singularity in Our Past Light-Cone” by Cosma Shalizi (asst prof of Statistics at Carnegie Mellon). To see its impact, consider life before it reshaped the world: in the late 14th century. Then the English pound was worth 4/5ths of a pound of silver, equivalent to roughly $175 today. When reading this, remember that the median household income in the US is now $52,000.

“What was 14th century money worth in today’s dollars? That’s tricky, because it depends on what you were buying. In the second half of the 14th century, a pound sterling would support the lifestyle of a single peasant laborer for half a year {$350/yr}, or that of a knight for a week {$9,100/yr}.

“Or it could buy three changes of clothing for a teenage page (underclothes not included), twelve pounds of sugar, a carthorse, two cows, an inexpensive bible, ten ordinary books, rent a craftsman’s townhouse for a year, or hire a servant for six months.

“It should be obvious from the above list that the conversion rate depends a great deal on what you buy. A husbandman or yeoman servant spent most of his budget on food and clothing, which have become relatively cheap since the industrial revolution. For that basket of goods, a pound sterling might buy $300 worth of goods today.

“On the other hand, a knight or noble might spend half of his income on servants, and much of the rest on handmade luxury goods, things that were relatively cheap then and expensive today. For that bundle of goods, a pound might buy $3,000 dollars worth of goods today.”

(3) The singularities in our future.

We have made great progress. But as Carl Sagan said, science is just a candle in the dark. We stand in a small circle of knowledge surrounded by the greater unknown. Expanding that circle can bring wonders to our descendants as amazing to us as our lives would be to our ancestors.

Although tech progress has slowed during the past few decades, there is no reason to assume that the tools which have brought us this far will fail us in the future. The good news is that a new industrial revolution might have already begun, based on breakthroughs in smart machines, new energy sources, genetic engineering, and new materials. These could produce improvements in living standards as large as those of past revolutions.

But history shows that technological breakthroughs are not natural. The ancient world had conditions similar to those of pre-modern Europe, yet nothing came of it. To restart growth and avoid a dead end like that of the ancient world, we must re-build our social engines of scientific and technological progress. Schools, universities, the patent office, the government’s R&D agencies — it’s a long list, most of which are neglected in modern America.

Too bad such things are ignored in campaign 2016. Instead we get a circus. But we can change that, if we have the will to do so.

Yes since we found out
Since we found out
That anything could happen
Anything could happen
Anything could happen
Anything could happen
Anything could happen
Anything could happen.

— A powerful insight in Ellie Goulding’s song “Anything Could Happen.”