@secparam you can create and insert a note for them, but you need to inform the recipient of that secret note
Orchard uses Diffie-Helman (broken by quantum), Tachyon will use ML-KEM (broken by AI in your hypothetical)
Personally, as someone who was deployed to the Woke 1 wars in 2014, i take full responsibility for what it ended up looking like a decade later. "It's not my job to educate you" was actually the most insane, detrimental and endlessly parroted line of that early Woke 1 era