> I suppose there's actually 3 forks in scope: No, segwit is an optional backwards compatible protocol extension that people can choose to use... not a fork. Y

> I suppose there's actually 3 forks in scope: No, segwit is an optional backwards compatible protocol extension that people can choose to use... not a fork. You can bridge an original bitcoin node onto the network using segwit and modulo segwit unrelated software bugs that just make it get stuck, it will reach consensus with the network fine.