Ok, back to my series of prior art we looked at, this is one that I wasn't directly involved (I was working on Google Search at the time), but know most of the folks that were: accountchooser.com.

I remember Account Chooser what if we lived in a world where people logged with their Identities mine is mfoster.io

Yeah, I'm sgo.to! That reminds me, actually, of another project we looked at early on: @t's and @aaronpk 's indie auth project! Will post about it sometime!

I can imagine a world where we have our identities and data that we control with local first and distributed out