You are saying they are "hardly betting on it". This is grossly false and I wonder why you would write that? Its clearly a serious bet, with lots of people working on it.
> Google CEO Sundar Pichai says we’re just a decade away from a new normal of extraterrestrial data centers
Its surely a high risk bet but that's how Google has been operating for a while. But why would you say they are hardly betting on it?
As a counter question: do you think Google is not serious about it?