I'm talking about technology progress specifically there which has continued to evolve at a rapid pace since then, even despite the lack of world or cold wars t

I'm talking about technology progress specifically there which has continued to evolve at a rapid pace since then, even despite the lack of world or cold wars that would cause intense money throwing at problems. And as this post points out, productivity doesn't seem to always scale with technology. Especially when most of that technology is just passive entertainment that expends lots of resources just to make us feel less bored. Regardless it's far too early to say it failed given that we're talking millennium sized scales where a 50 year slowdown or even dip is less than a blip. Of course real life also isn't a magical place where exponential graphs go up into infinity, so it has to plateau somewhere. I'd assume at the very least sometime after the local group of galaxies is colonized.