This is exactly my position. It would be easier to just build habitats (like O'Neal cylinders) in space that have the exact parameters you want, rather than tr

This is exactly my position. It would be easier to just build habitats (like O'Neal cylinders) in space that have the exact parameters you want, rather than trying to terraform worlds like Venus to be somewhat-habitable after millennia. And yes, asteroid mining looks very promising. Facilities on the Moon might be good for this industry, by providing a place with some gravity to do work, and not be worried about environmental issues (or an atmosphere to get in the way of transport). And it's not far from Earth, so you can take all the products of asteroid mining and easily ship them to where they'll be used on Earth, or launch them out into orbit to build space habitats.