I like your idea of getting to a trillion via "ten Uber sized blockchains" - that's a good way of thinking about it.
I've been reading Nick Szabo's essays lately, and the more I do, the more cryptocurrency feels like it's only in its infancy. This technology has such a long way to go, and as it grows, the value will leap upwards ever higher.
Yup, it is - definitely could use more essays in this space too :)