In an interview, Elon Musk states that the free flow of money is an important part of free society.

In nature, free flow doesn’t exist. Every flow is subject to the laws of nature, and material flows are subjected to gravity. On earth, this means that water flows down. In space the gravity is so low that objects with a certain velocity of their own circle around the earth and within those object there seems to be weightlessness, but in the end objects encircling the earth lose their velocity and fall back on the earth. Lees verder →