Elon Musk has updated his timetable for moving us all to Mars: we will now be boarding space rockets and abandoning Earth around 2022.
Actually, that's not strictly true - the SpaceX founder merely wants to achieve a manned mission to the red planet, which means one of us – presumably Matt Damon – can go ahead and check the place out first.
Musk, who has already brought the world driveless cars, the Hyperloop and – er – Paypal, explained his reasoning for this latest brilliantly bat-shit idea at the International Astronautical Congress in Guadalajara, Mexico (yeah we forgot to get tickets this year, too).
"What I really want to try to achieve here is to make Mars seem possible – like it's something we can achieve in our lifetimes," he said.
On potential outcomes for the future of humanity, Musk added: "One is that we stay on Earth forever and then there will be an inevitable extinction event. The alternative is to become a spacefaring civilization, and a multi-planetary species."
It wasn't high flying sci-fi rhetoric though. Musk elaborated on his plans, which includes a producing a larger version of SpaceX's existing Falcon 9 reusable booster that will be attached to am 'interplanetary module' the size of two Boeing 747s.
In a final poetic flourish that marks out your true visionaries from your crackpot dreamers, Musk added the first of these ships will be christened 'Heart of Gold' – a nod to a spacecraft of the same name from Douglas Adam's classic novel The Hitchhiker's Guide to the Galaxy which is powered by an "infinite improbability drive".