Comment by athrowaway3z
10 hours ago
Who wants to design a basic cryptographic p2p lock between trains that limit their speed 30km/h if they're not able to get proof they're alone on a track; when the alternative is to debate endlessly about whom to blame, and which billion-dollar conglomerate has the technical prowess to sit on the committee to debate the specs for a much worse system.
Of course HN wants to fix train crashes with a "cryptographic p2p lock". On a blockchain, presumably.