In a podcast, Eric Weinstein and Tom Bilyeu discuss a number of things, including evolution. I want to focus on that topic, which comes up sporadically, especially at minutes 11-15, 1:19, 1:24-1:31. A related issue is learning disability, which comes at minute 25, minute 57, minute 1:03, minute 1:17, and elsewhere.
My understanding of genetics and natural selection differs from Eric’s. Keep in mind that I never took a biology course, and most of any scientific discussion of alleles and so on goes right past me. So you should trust him more than you trust me.
I want to claim that evolution is like a statistician with insufficient data to determine whether a particular gene should be passed along or not. My slogan might be “Evolution selects for traits, and genes only code for proteins*” *or do other biochemical stuff.
Think of evolution as statistician. Call this EAS. EAS does not necessarily know which traits to keep. Take left-handedness, for example. Do we need to tell a just-so story in which left-handedness has survival value at a population level? Or can the genes for left-handedness have survived because they don’t have much impact on survival either way? Or is left-handedness an emergent property of gestation, not determined entirely by genetics? Maybe left-handedness is just a random variant that does not affect survival at either an individual or a group level.
EAS can figure out when single-gene mutations that are bad, and it can work on selecting those out. But a lot of traits are not single-gene based, and traits themselves are multidimensional. Suppose that we think in terms of an input-output matrix or a production function in which genes are inputs and traits are outputs. My sense is that the relationship between the inputs and the outputs is so complex that not only can we not figure out that relationship, but evolution cannot figure it out, either. So maybe there are some “bad” genetic combinations that get selected out, but there are plenty of genetic combinations that are far from optimal that do not get selected out.
Suppose that I have a combination of genes that is far from ideal for survival. But a lot of those genes overlap with genes that are ideal for survival, so evolution cannot be sure what to keep and what to discard. Furthermore, even though my combination of genes is “bad,” it is not so bad that I am unable to survive and reproduce. So “bad” combinations of genes can persist, and you cannot say that merely because a gene has persisted it must have some survival value. Same with traits.
So I am arguing against Eric’s inclination to see everyone as having good traits, and the rest of us should work to see the gifts that others have. I think instead that some people who just seem stupid or lazy are in fact stupid or lazy, due to a combination of the genes they inherited and the random adverse events that occurred during gestation. (One of my main takeaways from Kevin Mitchell’s Innate is that lots of bad things can happen during gestation.) EAS is not going to get rid of their traits or their genes. They are entitled to human dignity, but we should not set them up for failure by claiming that they really can perform great feats with the right encouragement.
Culture also affects selection. The person you want to mate with in an agricultural society may differ from the person you wanted to mate with in a hunter-gatherer tribe, so one can imagine culture changing the gene pool over time. In the last 20 minutes or so of the podcast, Eric argues that developments such as birth control and economic forces have affected sexual preferences. If so, then obviously this is a rapid cultural change, not a biological evolutionary one.
As an aside, I think that Eric and I share the trait of being disagreeable, and that it happened to work for us. He felt a strong need to prove himself to the educators who doubted him, and that was a powerful motivator for him. Similarly, when I was forty, I was tired of people saying that I was a visionary who could not implement anything, and that motivated me when I started my business. I decided that in order to succeed I needed to network, and I did more of that than I have ever done before or since. That helped make me lucky.
But being disagreeable and wanting to prove yourself to people who doubt you is hardly a guarantee of success. If it were, then the struggling students that Eric wants to champion might do better if their teachers are doubtful rather than supportive.
Eric’s view reminds me of that of Ralph Waldo Emerson’s Law of Compensation.
Every excess causes a defect; every defect an excess. Every sweet hath its sour; every evil its good. Every faculty which is a receiver of pleasure has an equal penalty put on its abuse. It is to answer for its moderation with its life. For every grain of wit there is a grain of folly. For every thing you have missed, you have gained something else
I do not think that the genetic/gestation lottery is as fair as that. Some defects are just defects. And some excesses are just advantages.