[Sundae]

Now I know TW is missing the point of the general discussion.
But away from this particular discussion, I can see his point. After all, why should we colonise another planet? Resources would be better resourced by machines.

Do we really need more space? There is plenty of space still on Earth. We should limit our population instead - even the richest countries in the world have parts of the population they are unable to support.

I'm not talking eugenics, merely population control.
And compare the cost of terraforming Mars to the cost of making - just examples - the Nevada desert or the Australian bush into reasonable habitats. They at least have oxygen and aren't 14 million miles away (sorry if that's wrong, I think I saw it on a move poster for The Martian!)