Not intending to be picky with @Bram, but this is how I see reality. Non btc cryptos share the technology with bitcoin, while holding the same monetary policies and interventionism as Fiat. 
nostr:note1gyr3j6rlgsmzulxk0kqc9lqzvrgq624lj9rxm4hfg04fhgrh5v5qll8lq2
nostr:note1gyr3j6rlgsmzulxk0kqc9lqzvrgq624lj9rxm4hfg04fhgrh5v5qll8lq2