I assume that OP is just as concerned about personally being able to access this tech which is an entirely different discussion to the exponential growth of tech.

We live in a harsh barbaric capitalist system that rarely even provides the bare necessities to most people. The main barrier to life extension for ordinary people is political and economic.

If you want life extension you need to join a political movement seeking a massive socialising of healthcare. Don’t bother becoming a scuentist; that part of the problem is actually super straightforward.

The political part of the equation has far less chance of success within our lifetimes. Better get started