That's the third post in the line of saying that this is still a far fetched or just far away maybe assumption - which is mind boggling to me because it is jot

That's the third post in the line of saying that this is still a far fetched or just far away maybe assumption - which is mind boggling to me because it is jot a cabal of experts but basically science agrees we are very much on the edge (time horizon is uncertain in relation to a human life, but in regard to earths age too close to the edge..) to do that right now? And even if we'd had the time, our resources are finite, if we could do better (=sustainable for me) right now, why wait and sit on the lazy path and hope for future technological advances?