I got caught up in the hype of Bitcoin and thought it would change the world, but the reality is that it doesn't really 'do' anything. All the apps that I've seen on the blockchain are pointless, or more efficiently built using non-blockchain stacks.

I was interested in a coin called MedicalChain which promised to store your medical records in the blockchain, but it seems to be vaporware (lost a little bit on that one!).

When Libra came along I thought that it would be 'the one'. Finally, a blockchain that could reach the mass market and actually be usable. Just a shame it's Facebook...