If a random article says so then case closed! Email and Bitcoin are clearly the same thing. Everyone knows Satoshi didn’t use PoW as a consensus mechanism. It was always about fighting spam. Hard hitting journalism

The pow of the hashcash stamp is a fee costing the sender. The pow of bitcoin ensures no entity can mine every block. Do you really not understand the distinction?

https://primal.net/e/nevent1qqsz5zw7x599mfg523vh8zyaqc7zqvrv4xl87r2t4ejva3q9hy9zv5cl2u7kv