Arthur Clarke once wrote what I think is the definitive essay on this subject. He listed the things that were logically impossible from those that were technologically difficult.
I think ‘time travel’ was the most contentious.
But I think that what is technologically possible is limited mostly by the time humans have to achieve it. That is, I agree, pretty much anything is possible, if ‘we’ ‘live’ long enough.
If we can ‘smoothly’ continue for 200 years… I think we’ll, well, be in another world. Fusion. Quantum mechanics, zero-point energy, bio-you-name it….
But will we.
(YT2095, I'll just assume there's an infraction in there somewhere. You don't have to bother issuing me a private, secret "don't say what I don't like" notice. Again.
(Oh, but wait, me, saying this, is an infraction (which of course it is)).