I have spent many happy hours listening to Aaron talk about his experiences serving on submarines on YouTube and Twitch. He used to go by JiveTurkey then rebranded to SubBrief.
This is a tool that I found recently. In the 0.2.0 release, there's support for multi-region queries which I've been really excited about. Now I can do a single query without having to doing merges in post-processing.
SQL joins across different APIs has been really handy too. I can do comparisons of my AWS, Azure and GCP compute resources in a single query.
I too don't need any of the features that cryptocurrency brings. However, cryptocurrencies are making substantial headway on solving the hardest class of problems that humans face: coordination problems. Common examples include the Tragedy of the Commons and collusion [1].
Vitalik has written some surprisingly approachable pieces on the various problems that cryptocurrencies face. It's not too much of a leap to see how these problems appear in non-cryptocurrency contexts. The value I see in cryptocurrencies is that they must develop robust/antifragile solutions to the coordination problems that have plagued society forever. Even if some problems can't be solved, then there are mental tools for making sense of what's going on.
Watching him play Cold Waters is a delight.