How to build interplanetary blockchains?

- What happens when latency is in the order of minutes, hours between ? 
- How do you build consensus? 
- Do individual planets just have their own chain?

creating and destroying; built flying cars & autonomous vehicles, now building /faust, more here: /july, web: july.rocks

Before the how, I would ask the why. Of all the potential problems awaiting human civilization if we ever become an interplanetary species, why is having shared blockchains a concern at all? What problem do you envision these blockchains would solve?

Founder of IndexTank, acquired by LinkedIn. Angel Investor, amateur pepper grower. South Park Commons alum. Born in Buenos Aires. Living in Oakland, California.

You could make the same argument for "why do we have different blockchains between countries" or "why do we all use the same internet between countries". If humanity is to progress, it needs to be connected (our ability to connect, and that alone, is what sets us apart) - and everything needs to be connected.

Open-source enthusiast creating citizen science products on the blockchain. Always for Melbourne, #DieWerkself

💯 Because time is the fundamental basis for "common knowledge" and coordination across space and:
https://twitter.com/keikreutler/status/1598254701564555264

Public space ops, App integration facilitator @brightid

and
https://twitter.com/glenweyl/status/1534240332174331904