Well my understanding is that visa, MasterCard ECT. Are far more efficient in terms of energy and transaction time when compared to Bitcoin and Ether. Visa uses about a quarter of the power per 100,000 transactions.

So I would assume that would mean fewer data center computers to cool and therefore less water used per transaction

I feel like I’ve been shilling beeper a lot recently. They may or may not read my messages but at least they open source their inferstructure and contribute to the FLOSS projects they use.

Fair enough. Although if you are interested all of their messaging bridges are available on their GitHub if you would like to self host them with your own matrix server. That way you don’t have to worry about them decrypting and reencrypting your messages.

I recommend getting beeper it’s similar to sunbird although it is paid but they do open source all of their back end infrastructure. Beeper is essentially just a matrix client for a bunch of different chat service bridges.