So back in March, I decided to do something a little obsessive. Every single idea I had for 90 days, I wrote down. App ideas, essay ideas, weird business concepts, all of it.

By the end, I had logged 214 ideas. I also went back and marked which ones I actually did something with.

Only 9 of them went anywhere. That’s about 4%.

I wanted to know why those 9 survived and the other 205 didn’t. So I started digging through my own notes. Here’s what I found:

The Excitement Trap

Here’s the first thing I learned, and it kind of stung.

The ideas I was most excited about in the moment, almost none of them worked.

I’d get this jolt of energy, write “THIS IS IT” in the margin, sometimes underline it twice. Out of 31 ideas marked with that kind of enthusiasm, only 1 survived.

I think the excitement was actually about the feeling of having an idea, not the idea itself. There’s a dopamine hit in “aha” moments that has nothing to do with whether the thing is good.

My ex-boss used to say, “The loudest idea in the room is rarely the smartest one.” I used to think that was just a saying. Now I think he was talking about his own brain.

What Actually Predicted Success

So if excitement didn’t predict anything, what did?

I noticed the 9 ideas that survived all had one thing in common: I kept thinking about them without trying to.

Not “I sat down and brainstormed this for an hour.” More like, I was in the shower, or driving, or half asleep, and the idea just showed up again on its own.

I started calling this the “return rate” in my notes, which sounds fancier than it is. Basically, did the idea come back to visit me without an invitation?

Ideas with a high return rate — showing up 3 or more times on separate days — had an almost 80% survival rate in my tracking. Compare that to the 4% overall average, and that’s not a small gap.

I think this makes sense if you don’t overthink it. A good idea has some kind of gravity to it. A mediocre idea needs you to keep pulling it out of the drawer.

The Boring Detail Test

There was a second pattern, and this one surprised me more.

The ideas that survived usually had one annoyingly specific, boring detail attached to them. Not a big vision, a small logistical thing.

For example, one idea was “start a newsletter about slow mornings.” Fine, generic, forgettable on its own.

But right next to it in my notes I’d written: “send it Tuesdays at 7 am because that’s when I actually read newsletters myself.” That tiny detail is what made it real to me.

The ideas that died usually stayed abstract the whole time. Big and shiny and completely untethered from anything practical.

I think I used to treat specificity as something you add later, after you’re sure the idea is good. Now I think specificity is actually part of how you find out if it’s good.

The Days I Didn’t Write Anything Down

There were 6 days in the 90 when I logged zero ideas.

I felt kind of embarrassed about that at first, like I was failing my own experiment.

But looking back, those were almost always the days right after I’d finished something. Like my brain needed a rest before it started generating again.

This reminded me of something my old football coach actually said: you can’t sprint every single lap, or you’ll have nothing left for the last one. I never thought that would apply to thinking.

Now when I have an idea-dry day, I don’t panic about it. I just assume I’m resting, not broken.

The One Personal Lesson That Actually Changed Me

Okay, here’s the real one, the thing that made these whole 90 days worth it.

I used to believe that having good ideas was about being smarter or more creative than other people. Some kind of natural gift you either have or don’t.

But as I went through my own log, idea by idea, I realized something uncomfortable. My best ideas weren’t smarter than my worst ones.

They were just the ones I paid attention to for longer.

That’s it. That’s the whole secret, and it’s a little disappointing if I’m honest, because I wanted it to be more mystical than that.

My grandmother used to keep tomatoes on her windowsill until they were “ready,” and she always knew which ones by just looking, not by any trick. I think ideas are like that too. You don’t force the ripening; you just have to actually look at the windowsill instead of walking past it.

What I’m Doing Differently Now

I don’t chase the exciting ideas first anymore, which was hard to unlearn.

Instead, I wait and see if an idea comes back on its own, two or three times, before I give it any real attention.

And I’ve started forcing myself to attach one boring, specific detail to any idea before I let myself get attached to it.

If I can’t come up with a specific detail, that’s usually a sign the idea isn’t done cooking yet.

The Number That Stuck With Me

Out of 214 ideas, only 9 survived, but here’s the part I keep coming back to.

All 9 of them felt kind of quiet when they first showed up. Not thrilling, not a lightning bolt, just… persistent.

I think we’ve been taught to wait for the lightning bolt. Movies do that to us, honestly.

But lightning is loud, and it’s gone in a second. What I actually needed was something closer to a tide, coming back again and again until I finally noticed it was rising.

So now when a new idea shows up, I don’t ask myself, “Does this excite me?”

I ask, “Will this still be here next week?” And that one question has saved me a lot of eleven-notebook situations.