From George Dyson on Edge:
Instead of putting a dozen scientists in a room to come up with a better model of the existing global financial system, we should put a dozen Pierre Omidyars, Elon Musks, Salar Kamangars, and Jeff Bezoses in a room (with Danny Hillis) and let them actually build one (a new financial system, not another model)
When to quit — said Kamen, also the inventor of health care technologies and the Slingshot water purifier — is “the toughest question there is” for any entrepreneur who survives on creativity and instinct.
“It’s not nearly as glamorous as people think to keep working on something and to keep hitting roadblocks and to keep going,” [...]