Extra
A few Hackernews suggest that AMP's feature set can be replicated with a "stop shoving every fucking possible line of javascript into every single pageload" approach, but they are quickly chloroformed and edited out of past Christmas photos.
It's the standard tech company mentality: Deliberately make your product different and incompatible with everyone else and compete instead of cooperate. Best case outcome is monopoly and customer lock-in. Most likely case is no one solution gains enough traction and you end up with 15 incompatible chat apps.