Re: Venus and Mars
In a post-FTL future nothing has value because the resulting causality-violation means you can fuck with the past so games of chance, like the stock market, stop working.
(I know, you meant special magic unphysical sci-fi FTL which conveniently lets you do the going-to-the-stars thing without the inconvenient build-a-timemachine thing which is an immediate consequence of it and is what you'd really want to to (if you don't get to work sending information about markets back in time so you can win the stock market and take over the world someone else will, and you'll be their slave (literally)). I read books like that too, but you have to ignore any predictions they make because of huge holes like this.)