Why stop somewhere in between? You can go straight to the Sun and directly tap into near infinite source of energy. No need of solar panels, direct access to thermonuclear energy, too cheap to meter. The economics already works out, zero capex, zero opex for the next ~4 billion years. Just needs a few small problems to be worked out, like a pipe to transfer energy.

I guess we'll see if their idea warrants your ludicrous comparison soon. Google is putting out a lot of real resources to test theirs out, so presumably it wasn't obviously insane to them when they ran the numbers.