I dont think its that hard, honestly, he said.
Its not that hard to float around.
He eventually wants to colonise Mars and build a city on the Red Planet.
Its really a fundamental decision we need to make as a civilization.
What kind of future do we want?
They include: electric airlines, genetic engineering and bionics.
Musk believes these fields have a lot to offer if they are fully explored for what they are worth.
source: www.techworm.net