One thing we take for granted in today's laws of physics: services know nothing about you.

You visit a site and expect it to give you the generic one-size-fits-all experience.

Not until you log in and start accumulating actions can it start to morph itself for you.

But if you change the laws of physics so services come to you, and there's a privacy model that allows safe speculative execution, then all of that changes.

Imagine: every service you interact with is perfectly personalized to you, but also perfectly private.