I will nitpick this one: > 1. The switching cost from Google Search is certainly not zero, it implies switching from Google, which is virtually impossible beca

I will nitpick this one: > 1. The switching cost from Google Search is certainly not zero, it implies switching from Google, which is virtually impossible because it's tied to Chrome, YouTube, Android and Gmail Google Search is a product. Not the whole company. Switching to most other search engines is $0. Naturally no one is honor bound to use anything else you listed either.