Technology is seldom the bottleneck, that seemingly is down to social acceptance.
Things used to progress by people dying out, however enhanced lifespan makes this even more of a problem.
Emigration to new societies helped, but there’s no where left to go with a clean sheet.
Whilst a fan of space colonies, that looks to be even more complex than when life moved from the sea to land.
So herding rabid cats seems to be the core skill.