Edit: Bitcoin can never provide real-time, trustless proof-of-publishing. Instead there can only be 0-confirmation, which relies on trust of miners. Systems that can have failure modes eventually experience Murphy’s law from time-to-time.

Craig Wright’s emphatic criticism of Replace By Free (RBF) is incorrect, especially as transaction fees become significant relative to the declining protocol determined block reward (yet it’s modeled that proof-of-work becomes dysfunctional then any way).