Google's value would take a huge hit if somebody made a search engine that is better than Google's, so it's still a tech company. It's still mainly seaech (adve

Google's value would take a huge hit if somebody made a search engine that is better than Google's, so it's still a tech company. It's still mainly seaech (advertising is its business model, though ad positioning is state-of-the-art). Facebook has network effect and Über has it's driver network, which is more important than the app itself. They are all very different types of companies. WeWork is similar to Über: it has real costs of buying atoms instead of.juat handling bits.