interesting podcast by nostr:npub1s5yq6wadwrxde4lhfs56gn64hwzuhnfa6r9mj476r5s4hkunzgzqrs6q7z on Tether and Holepunch/pears.com 
The underlying peer2peer technology is net interesting.
i have made a video to explain. 
https://youtu.be/1pl7SQy93G4