I actually printed this one out to give it a thorough read, something I haven't done in a while :) I'll probably comment on the author's blog later.

My first reaction is that it's a bit of oversimplification, LLMs have been on the scene for what like 4 years now? I doubt the effects will be visible when you look at the data.

But on the topic of inequality as a result of changes how value add is distributed between business owners and the labor - there's a very relevant book by Thomas Pickety called "Capital in the 21st century" (I believe he used the title of a similar work by another economist in 18th century on the same topic). He collected as much data as he could on income and wealth of individuals and groups for Western nations (some going back to like 17th century) and did some analysis.

In a nutshell, the share of profits going towards the business owners (simplifying, inherited capital) in the West had been increasing in the 18th and the 19th century, likely due to Industrial Revolution. Which in the US culminated in extreme inequality personified in Robber Barons (Carnegie, Rockefeller and Co). It was followed by economic and financial collapse, mass unemployment, and arguably, 2 world wars. It also resulted in creating various mechanisms designed to prevent these things in the future, such as anti-trust regulations.

After WWII (especially in the US) the distribution of value add between the ownership/capital and the labor changed so that the labor started getting larger and larger share, to the point that the economists declared that the capitalism solved the issue of inequality. That trend reversed around 1970s/1980s, which coincided with the invention of complex electronic computing and communication devices (and therefore inventions of the new business models). From that point on the share of profits going towards the business owners started increasing again, and that speed has been actually accelerating since the 2000s.

imho at this point US is basically where we were in the end of 19th/early 20th century. The individuals' names are different, the issues (extreme monopolization/concentration of capital) are the same. LLMs and other GenAI stuff are simply part of that trend.

Hopefully people at the power learned something from what happened 100+ years ago. But I kinda sorta doubt it.