The blockchain is nothing. It&#x27;s just a database with some transactions which have a hash of the previous blocks... it&#x27;s just a simple database in and of itself, no better than an ordinary (centralised) database.<p>The cool part is that it&#x27;s decentralised, and you can only do that with bitcoin, or some equivalent decentralised value token (call it a currency if you want, doesn&#x27;t matter but there has to be a token with value).<p>Big finance has very silly ideas about a bitcoinless blockchain. No other POW or equivalent protocol has a value token anywhere near the size of bitcoin, and thereby nowhere near the security. The blockchain is nothing without bitcoin, until it is usurped and there&#x27;s zero indication of that happening.<p>There are lots of &#x27;internal&#x27; blockchain ideas floating around right now, i.e. not decentralised, proprietary &#x27;blockchains&#x27;, which are really just ordinary centralised databases which have nothing to do with the concept &#x27;blockchain&#x27; at all and are not novel in any way and have been around for many, many years, and Big Finance is eating that stuff up. It&#x27;s nonsense really.