Elon Musk, running his very successful aerospace company SpaceX, knows why he is pushing so hard for man going to Mars (read more here — link >>> ). He is the kind of chap who puts his money where his mouth is. I like such people, because they are a refreshing change from the hot-air politicos and analysts who populate the the upper echelons in our societies. Elon Musk is a doer, just like me but on a grander scale. I wish I could work for him.