Saylor believes bitcoin should be store of value and dollar medium of exchange. Bitcoin compete with dollar and has to become the medium of exchange to deliver its potential as freedom money. Are you really free if you have to convert your bitcoin to usdc/usdt (they are gateway to cbdcs) to buy stuff?

Nostr on the other hand is much more than just social media (unlike X). Nostr is engine, whereas X is Toyota. You can use engine in cars, but it is not limited to cars and does not compete with car companies, but can be used to create new car brands to compete the existing ones.