>Also, a large part (40-50%?) of the population might not be needed, or even desired, e.g. poor and older people that put a strain in the economy, so, they might be delegated to "b class" citizen status, and might end up living in some developing world like wasteland/slums in the next 50 years or so, while another big percentage has service jobs, and a 10-20% of luckier people live in closed communities.

I think this is very possible. And I suspect that the overwhelming majority of the b-citizens will be people not knowing how to write a software.

I say it continually to those I love (close friends, family etc...) : unless very specific career choices, starting in life today and deciding that "having no clue about coding is fine", is at best a dangerous gamble, at worth a suicide.

I think Darwin kind of applies in our modern society but people do not notice it. For example, what led me to doing engineering studies was pure survival instinct.

I have a business profile - and am a business owner today - still heavily writing code, and intending to keep doing it.

Since I'm about 12, I knew that my stuff was starting companies, business strategy, product design, corporate finance and this kind of stuff. That's what I was toying with in my spare time. But a pragmatic analysis of the world led me to quickly realize that I'd be better off being proficient in technology stuff, to avoid being at a big disadvantage since all the stuff I'd be selling and designing were going to be technology-based.

At the time, I said in the way children speak : "I want to be able to build what I will be selling so that I do not have to depend on the good will of anyone". And this was the smartest move I ever made in my life. And this kind of thinking is what continually puts me ahead.

I think it would be interesting to find a way to measure the "survival instinct" of people, and see if there's a correlation with those who do "well" and those who find themselves surprised at every recession and industrial revolution.