Pure Human love is to want and have all and every bit of everything willing exchanged between two people. That's information exchange that's at the heart of pure love, good and bad without judgement thereof.

The DNA information is exchanged, then that love extends to your children, the result of Pure Human Love. Females are very selective, they look for real Empathy being exchanged by the Male.

There is a lot more involved, but the exchange of Empathy that happens goes through every part. Once DNA is exchanged that Empathy is a Immutable Truth.

Bitcoin is Immutable Truth and as a result forces an exchange of Pure Human Empathy. PoW is part of this Immutableness.

Nostr has no cost exchange of information and cannot be Immutable Truth. Love can be shared, but equally so can abuse.

Fundamentally, that is why Bitcoin is the exchange of Pure Human Empathy.