Ecash on nostr is like having wheels on your luggage.
Discussion
How did they not think of wheels on luggage in the first place?
It's a better metaphor than you think because it seems obvious in hindsight but the real innovation was flat, smooth surfaces on all pedestrian areas.
It took centuries of infrastructure and technological development that everybody now ignores because that's "just how airports are."
Same with bitcoin. We're still in the horse and carriage phase.
It’s actually amazing what I am accomplishing with ecash on nostr (or luggage on wheels)