Nitpick: Strassen is not galactic, though according to Wikipedia, most attempts to be even faster than Strassen are galactic. Strassen is used in real life once the matrices get big enough.
Thanks. I forgot the name of the galactic algorithm and googled to look it up but in retrospect I should've noticed the numbers for it seem closer to the potentially practical range.
This way of thinking about blockchain is appealing. However, current approaches are distributed consensus algorithms. They make assumptions about low latency (some quite explicitly), and require significant communication to maintain consistency. I think a blockchain suitable for interplanetary latency would be unsuitable for on-planet use. So if a blockchain suitable for intergalactic use exists already, it is unlikely to be the basis for a successful altcoin.
Meta-chain proposals like https://arxiv.org/html/2508.20591v1 essentially use planetary blockchains with a high latency interchange layer to connect them together. This sidesteps the concern about latency but I'm not sure that a bunch of separate blockchains with a loose coupling layer can still be called a blockchain.
The Freyaverse books of Charles Stross explore intergalactic trade and highlight some of the friction points that might arise due to high latency.
Nitpick: Strassen is not galactic, though according to Wikipedia, most attempts to be even faster than Strassen are galactic. Strassen is used in real life once the matrices get big enough.
Thanks. I forgot the name of the galactic algorithm and googled to look it up but in retrospect I should've noticed the numbers for it seem closer to the potentially practical range.
This way of thinking about blockchain is appealing. However, current approaches are distributed consensus algorithms. They make assumptions about low latency (some quite explicitly), and require significant communication to maintain consistency. I think a blockchain suitable for interplanetary latency would be unsuitable for on-planet use. So if a blockchain suitable for intergalactic use exists already, it is unlikely to be the basis for a successful altcoin.
Meta-chain proposals like https://arxiv.org/html/2508.20591v1 essentially use planetary blockchains with a high latency interchange layer to connect them together. This sidesteps the concern about latency but I'm not sure that a bunch of separate blockchains with a loose coupling layer can still be called a blockchain.
The Freyaverse books of Charles Stross explore intergalactic trade and highlight some of the friction points that might arise due to high latency.