Hi, Ross...
I've read of, and share (limited by my superficial understanding) concerns about securely personally maintaining and managing that ownership and portability.
I understand the basis of that to be the asymmetric encryption of my nsec/npub keypair. I've invested considerable time interacting on nostr, but what of heavy reuse of my nsec? What if it were to become exposed to bad actors, or lost? Is keypair succession being worked on?
I won't say these things keep me up at night (yet), but I do wonder...