But that's not the claim. The claim is that 60 years counting from the moonlanding we will have a settlement on Mars. I don't believe it for a moment. And even 60 years from today is a thing that I would not believe. We have a hard enough time keeping places much more hospitable to life on planet earth supplied.

Maybe, just maybe, we will have made a manned round trip to Mars. And that would be quite an accomplishment. A much more likely chance is a one way trip with all hands lost, assuming they make it to the destination at all.