Another issue some people here have overlooked: Google is a public company. It is responsible to its shareholders who seldom share the founders' long-term visio

Another issue some people here have overlooked: Google is a public company. It is responsible to its shareholders who seldom share the founders' long-term vision. 1 year of Google losing cash on an ambitious car project and investors will start grumbling. Another year of that and you will have some 'activist investor' asking for ending the damn thing and going back to making profits. Uber is a private company and a growing one at that. It is expected to lose money. It can go all in without anyone but its private investors questioning it - private investors who want it to do whatever it can for a $100B IPO