Why We Do Things We Later Regret
On the half-second between knowing better and doing it anyway and why regret always seems to arrive a day too late to help.
There’s a specific kind of morning where we wake up, and before we’ve even opened our eyes fully, it’s there… a small, cold weight sitting somewhere behind our ribs. Something was said last night. Or sent something. Or didn’t send something, and that silence is its own kind of regret. The strange part isn’t the memory itself. It’s how unsurprised we are by it. Some part of us already knew, even while we were doing it, that this was going to cost us something come the next morning.
That’s the part worth sitting with. Not the mistake but the knowing.
Most of us assume regret is a failure of foresight. That if we’d only thought it through, we wouldn’t have done it. But that’s rarely the honest version. The honest version is that we often did see it coming may it be a flicker, half a second, some quiet interior voice that said “don’t do it” but we did it anyway.
Epictetus had a word for the space this happens in. He called it prosochē which means the attention owed to the gap between an impression landing on us and our reaction to it. A feeling arrives maybe hurt, boredom, longing, anger and almost instantly, without our noticing the transition, it becomes an action. The text gets sent. The comment gets made. The thing gets bought. The Stoics didn’t think the feeling itself was the problem. They thought the problem was how fast we let it drive.
Regret isn’t proof you didn’t know better. It’s proof you knew, and the knowing arrived a half-second too late to matter.
There's a difference between an impulse and an assent. The impulse is the wave where it comes uninvited, and there's no shame in feeling it. The assent is the moment we say yes to it, even wordlessly. Almost everything we call "acting out of character" is really assent moving faster than attention. Not a flaw in character. A timing problem.
This might be why regret feels so specifically humiliating, in a way other failures don’t. Failing at something hard may it be a job, a relationship we tried and lost feels almost noble in its difficulty. But regret over something small and avoidable feels like evidence against us. You knew better. You’ve always known better. So why didn’t it matter, in the moment it needed to?
Here’s where the Stoics would push back, gently. The fact that it didn’t matter in the moment doesn’t mean the knowing was useless. It means the knowing arrived at the wrong layer. It sat in your head, correct and unused, while something older and faster ran the actual decision. That’s not evidence of carelessness. It’s evidence that awareness and action live in different rooms, and most of us have never installed a door between them.
There’s a practice that doesn’t get talked about as often as the famous ones. Seneca describes going over the day each evening but not to punish himself for what went wrong, but to actually look at it. Not “how do I feel about what I did,” but “what happened, in order, before I did it.” What was the impression. What was the feeling underneath it. Where, exactly, did the half-second of noticing exist, and what happened to it.
It’s a small practice. Almost embarrassingly small compared to how loudly we usually try to fix ourselves. No overhaul, no new identity to step into. Just a nightly walk back through the gap, to see where it closed too early.
You don’t fix the gap by trying harder in the moment. You fix it by becoming someone who’s already looked at that moment before with enough times that it stops surprising you.
This is why it might explain why the same regrets tend to repeat. Not because we’re weak in some fixed way, but because we keep meeting the gap as if for the first time, every time. The late text. The short temper. The thing bought to fill something buying can’t fill. Each one arrives dressed as a surprise, when really it’s a rerun of the same half-second, the same too-fast assent, wearing a different outfit.
The evening review isn’t about becoming someone who never feels the impulse. It’s about becoming someone who’s met that particular impulse before, calmly, in hindsight enough times that it starts to lose its element of surprise. The gap doesn’t close any slower on its own. We just get better at noticing you’re standing in it.
I don’t think regret is something to eliminate. It’s closer to a signal arriving at the wrong time like a warning that shows up a day late, standing outside a door that already closed. The work, if there is any, isn’t to silence the warning. It’s to move it earlier. Not through more willpower in the heat of the moment, but through the quieter, less glamorous habit of looking back at your own half-seconds until they stop hiding from you.
Maybe the version of us that doesn’t do the regrettable thing isn’t smarter, or more disciplined, or more in control.
Maybe we’ve just met that moment before.
Talk soon,
Pathsofstoicism