Ask HN: Should I learn the tech behind crypto even if I don't want to own any?

I have to be extremely picky about stuff I want to learn. I lack time, and moreover, if I actually want to reach a non-trivial level of skills in a particular field, I have to spend serious amount of time, abandoning other wishes/ideas.

So, my question is- is the Crypto tech, like blockchain, worth learning? Will there be applications beyond decentralised finance, web3, etc.?

Will learning the tech make me a better "technologist" in any way?

I want to be clear: I do not want to buy or own cryptocoins. Web3 does not look interesting to me at this point.

Should I still learn about blockchains?