You Only Live Once — Perhaps That's the Problem.

The Things We Were Told About Life — Part 7 (Season Finale)

Someone quits a stable job to finally try the thing they've wanted for years. Someone else maxes out a credit card on a whim.

Both of them say the exact same three words to explain it: "You only live once."

The Claim

Life is short and unrepeatable. Stop overthinking. Seize the moment while you can.

Other familiar idioms and expressions.

1. Strike while the iron is hot.

2. Lightning does not strike in the same place twice.

3. If you cant stand the heat stay out of the kitchen.

But then again, how do we justify two apposing expressions, Life is short and Life carries on, which is it?

The Investigation

Economists call it hyperbolic discounting: the brain's well-documented habit of overvaluing rewards available right now, and undervaluing the exact same reward, or cost, if it's pushed into the future. "You only live once" is, functionally, cultural permission to lean into that bias rather than question it.

Meanwhile, a separate, long-running line of research on regret has found something that cuts the other way: across decades of study, people consistently report more regret, in the long run, over things they didn't do than things they did. Roads not taken haunt people longer than risks that didn't pan out.

The Contradiction

Here's the trap: "YOLO" gets used to justify two completely different kinds of decisions, and treats them identically. One is a genuine, values-aligned leap, the kind research says people regret NOT taking. The other is a small, impulsive indulgence that trades long-term wellbeing for a short-term hit, exactly the kind of decision hyperbolic discounting predicts you'll overvalue in the moment and pay for later.

The Human Question

The person who finally leaves the job that was slowly grinding them down, and the person who impulse-buys something they can't afford, both reach for "you only live once" in the moment of deciding. Only one of them is likely to look back and feel glad they did it.

The Uncomfortable Question

If "you only live once" is equally true of your best decisions and your worst ones, what does the phrase actually tell you about which one you're making right now?

Nothing. That's the point.

The Other Side

This isn't an argument against spontaneity. Overthinking has real, well-documented costs of its own, plenty of good opportunities die from excessive deliberation, not too little. The phrase isn't the enemy. Used as encouragement toward a genuine, values-aligned risk, it's doing real work. Used as justification for a reflexive impulse, it's just borrowing against a future you'll also only live once.

The Verdict

Partly true, partly misleading and it depends entirely on which decision you're using it for.

For a meaningful leap aligned with what you actually want, the phrase points the right direction. For a short-term impulse, it's borrowing the same urgency to justify something research says you're likely to regret differently.

The Reality Check

What does it promise? That urgency alone is a good enough reason to act.

What does the evidence show? That people regret inaction on meaningful risks far more than action, but consistently overvalue small, impulsive rewards in the moment.

What should you do with the gap? Before saying "YOLO," ask which category the decision is actually in.

Your Turn - and a Closing Question for the Whole Series

Across this series, we've tested what we were told about reason, patience, persistence, passion, ambition, adversity, and now urgency.

Here's the last one: the next time you reach for one of these lines to justify a decision, are you using it to think something through, or to avoid thinking it through at all?