Amazon is a much better example of a moonshot than Google search. The key idea is easy to state: an easy-to-use online store for almost anything, with fast and cheap delivery. But how on earth do you make that work in practice? You need a ton of business deals with various manufacturers and brands, you need warehouses everywhere, you need a massive delivery network... the investment required is just staggering. And indeed, for many years they were criticised for not making a profit, but the investment is clearly paying off.