[RgtrsKfR]

An analogy - We could, right now, decide that we could combat global warming by building a really big rocket on the equator and firing so that it moved the Earth further away from the Sun so we'd be a bit cooler.
It's possible, but the rocket would have to be so large it would cover most of the Earth and be impractical.
Some time in the future we may find ways around these huge barriers but for the foreseeable future we are still very limited by them. You can imagine all you like, but reality will bite you in the arse every time.

I see now. Fair enough.