"I don't know the circumstances of every person on the planet and therefor don't know what they can do. But I think I know what HN crowd could do."
My point was that switching to part-time seems unachievable to me for the majority of people, without changing other factors at the same time, and so we should simultaneously enquire how you recommend to deal with those other factors, for the advice to be most effective. I don't wish to dismiss the advice; I wish to understand how to solve the obstacles to actioning it.
Is your point that HN crowd are relatively well off, so part-time and remote work is available to many of the HN crowd?
(I'm pretty sure we're on the same side of the general debate, in favour of individuals taking actions that they can to improve their footprint.)
With the number of people currently having to work more than one job, it's hard to see how they can switch to part-time.
I know some people who pay >50% of their income towards rent, and their rent isn't especially high. It's that their income per job isn't very high, and housing is set by competitive demand in areas with jobs, not by cost of provision.
We're going to have to solve the cost-of-basics problem somehow, before many people can reduce their work hours to part time.
But that doesn't stop people who can do it from doing it, and maybe that's enough to turn the tide for everyone.