The only thing mathematically certain about bitcoin is that transaction validators are mathematically designed to centralize, and that means it's mathematically certain to be a permissioned ledger where the rulers ruling over you can do anything they want, from blacklisting all your funds, to slipping in things like chain anchor, to altering coin count and anything else.  If you wish to be ruled over and be someone's bitch in a dystopian technocracy, then bitcoin is for you. If not, there is silver and gold.