We’ve all experienced it. The understanding arrives late. You only get the map after you have already walked the path, and by then you are somewhere else, walking a new one with no map at all.

Danish philosopher Søren Kierkegaard caught this in an 1843 journal entry: “It is really true what philosophy tells us, that life must be understood backwards. But with this, one forgets the second proposition, that it must be lived forwards.” Two simple-sounding clauses that, taken together, describe a genuine bind.

A quick note before we go on. I am not a psychologist, and this is a piece of reading and reflection on a  journal entry and some research that rhymes with it, not advice. The studies I mention are about patterns across groups of people, not predictions about you or your life.

The trap of living inside the moment

I know this one from the inside. My own career only reads as a sensible line if you trace it after the fact. I left finance in Ireland, moved to Vietnam, managed an adult language school, failed at an online school, interned at a venture capital firm, ran a coffee startup, and somehow landed in freelance writing. Backwards, there is a through-line. You can almost see the logic. Forwards, every single step felt uncertain, and a few of them felt like falling.

The sharpest was going from managing that language school, a job where I was responsible for a sizeable team, to being an intern at a VC firm. On paper it was a clean status drop. Friends my age were already qualified accountants or settled into careers, and there I was essentially starting over. At the time it did not resolve into anything. It just sat there as a slightly embarrassing fact. Only later, gradually, not in any one lightning-bolt moment, did it start to look like a reasonable move rather than a backward one.

I think this is the trap Kierkegaard names. Inside the moment, you do not have the information that would tell you whether you are being brave or foolish. You only get that information by waiting, and by the time it arrives you have already made the call.

What looking back actually gives us

The backward look is not as trustworthy as it feels. When we understand our lives in reverse, we are not playing back a clean recording. We are reconstructing.

Psychology has a name for the most common distortion: hindsight bias, the “knew-it-all-along”. Once you know how something turned out, the outcome starts to feel like it was always obvious. One real-world illustration comes from a 1993 study by Dietrich and Olson: before the Senate vote on Clarence Thomas’s confirmation, 58 percent of students predicted he would be confirmed; afterward, 78 percent claimed they had predicted it. The past quietly rewrites itself to look more inevitable than it was.

So the coherent through-line I see in my own résumé is partly real and partly a story I have smoothed into shape. When I tell you leaving finance was the right move, I am tidying. The truth is I looked at the people ten and fifteen years ahead of me on that ladder, decided I did not want to become them, and planned to travel for a year or so. That trip reshaped my entire life. But I did not know that, could not have known it, when I handed in my notice. The decision was made on badly incomplete information. The meaning came years later and arrived dressed up as something I had seen coming.

None of which makes the backward look useless. It is how we extract anything at all from experience. It just is not the neutral retrieval it pretends to be, and worth holding a little loosely.

Living forward anyway

So you have a backward look that arrives too late and is not entirely honest, and a forward life that has to be lived without it. That sounds like a reason for paralysis. I have not found it to be one.

My first year in Vietnam felt enormous, longer in memory than most years since. Everything was new at once: the city, the noise, the food, the language, the person I was slowly turning into. Living it, the whole thing was mostly just unfamiliar and a bit overwhelming. Only looking back does that year reveal its full shape, the way it bent everything that came after. The richness was there the whole time. I simply could not read it yet.

Kierkegaard does not offer a solution, and I will not pretend to either. The two clauses stay in tension because that is what being a person is. What it asks of you in practice is small and slightly uncomfortable: make the call now, on the information you have, knowing the understanding will only show up later, and knowing that when it does it will quietly tell you it knew all along. You move forward into the fog and let the meaning catch up on its own time. It usually does.

If any of this is unsettling, especially the parts about big uncertain leaps and the doubt that comes with them, talking it through with a good therapist or counsellor is worth more than any essay.