Earlier quoted context omitted.
If you're interested in human habitation of Venus overall, you may find it interesting to learn Venus is probably preferable kept at about its current temperature or only made a little colder. See, the atmosphere at ~50 altitude... happens to be about 1 bar (which happens to be Earth's atmospheric pressure ASL)... and happens to have temperatures that can support human and plant life! And better still, the atmosphere…
You need to give us more. I feel that just the heat is a tricky problem, even at 50km altitude. Anything todo with Venus is very much scifi at the moment. It might be easier than a moon base but we can not know.
Rather my meaning was that it's (a little shockingly) the best suited planet for humans in terms of most closely and reliably resembling conditions humans could survive in, which relates to the terraforming notions I was replying to.
It'd be overwhelmingly harder to make all of Venus Earthlike than to just use the existing relatively Earthlike regions of the upper atmosphere to our advantage along with their unique properties. Cool off Venus and you just get a big ocean of liquid or frozen co2 to have to deal with after a loooong time and a lot of construction. Keep it like it is and a fraction of the resources/effort will yield far more utility while we can still enjoy a segment of the atmosphere.
Scifi? Of course!
Cool? Without a doubt!