#AskNostr So what happens when you hit the "Broadcast" button on a note?

The client simply send the note again to the relays, and if the note is already there, do nothing with it, but if it isn't, they store it?

My understanding based on some tangential conversation I saw months ago is that notes are timestamped, so that wouldn't mean that the note goes to the top of people's timeline again, correct? Just that they're available on more relays (if they were missing in the first place).