Wow. That is exactly my experience but I've never been able to articulate it that way. "Constitutionally unable." Thank you.

Random thought. Try replacing the “send” action in your brain with “stand up”. For me I think “send” is almost a knee jerk reaction, almost a fidget respond where the monkey brain doesn’t like to sit still so it will do the action it sees next. So maybe “stand up” could be an action that satisfies monkey brain while also buying you time to reflect and transition mental states to a reviewing mindset.

Gmail's delay is fairly effective for giving time to catch some typos or remembering you meaant to add another line.

It's not really long enough for deciding, after some thought, that maybe I shouldn't have sent that. (Though I'm pretty good at self-censoring these days.

I also identify with this 100%. It's probably a personality flaw of some sort.

I think some buffer in the brain gets cleared when you send the message, and you see it with fresh eyes.