I think Hawking should be more worried about jogging to the corner shop by 2110 than getting off this planet.
Besides, we'll all be fucking toast by then anyway, and I ain't referring to that Mayan calendar bullshit either.
Ewww, toast is so good for eating, why would you want to do anything else with it?!
MMmmmmm toast with some butter and cinnamon yum!
And they say dead bodies smell of cinnamon. See, there is a connection.
They do? Who are THEY?! 
The people over there. The ones with the martinis and dinner suits.
