Bitcoin is not interplanetary, right?

For example it isn‘t fit for a Mars colony. Depending on constellation, information would travel too long so that mining isn‘t feasible there.

- You could still do transactions if you trusted the Old Earthers.

- Or you could aim for more than 50% mining power so that Mars takes over mining.

- Or you could create a super chain, which synchronizes a new #marscoin with Bitcoin

- Or you could increase the block time from 10min to 24h and run two new smaller chains on each planet.

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Great point! Indeed, you would probably need a separate PoW network on a sufficiently distant planet. And there could be a competitive advantage to running an "exchange" on a satellite halfway between the two planets, because it will have a kind of information parity

Interesting point about the satellite in the middle. Especially difficult to position it properly so that it makes most profits. Calculating orbits would become a very economically driven undertaking, and a difficult one because it would always include multiple bodies.