At a glance
A hype file is a running list of your wins and compliments. The case for logging things the same day goes back to one of psychology's oldest experiments, where most of what was learned faded within the first 24 hours.
How this started for me
For years I kept every nice text I got in one note on my phone. Screenshots of compliments, an email from a teacher, a message from a friend after a rough week. By the time that note had a few hundred messages in it, it had stopped being useful. One night I went looking for a specific one, scrolled for what felt like forever, and gave up.
That's the problem a hype file is supposed to solve, and it's most of the reason I built DoubtFree.
What a hype file is
A hype file is a running record of evidence that you're good at things. People also call it a brag document or a kudos folder. The idea spread in tech, where engineers keep one to prep for performance reviews, and Julia Evans's post on brag documents is probably the best-known version. Nothing about it is specific to work, though.
Why the same day matters
In 1885, Hermann Ebbinghaus ran one of the first controlled memory experiments, using himself as the subject. He memorized lists of nonsense syllables, waited, and then timed how long it took to relearn them. The time he saved on the second try, which he called "savings," told him how much of the memory was still there.
His savings fell to 58% after 20 minutes, 44% after an hour, and about 34% after a day. After that the drop slowed way down, to around 21% after a month. In 2015, Jaap Murre and Joeri Dros at the University of Amsterdam repeated the experiment over 70 hours of testing and got nearly the same curve.
Real memories stick better than nonsense syllables, so don't read the exact numbers literally. The shape is the useful part: most of the loss happens early. The exact words someone used to compliment you, or how it felt walking out of an exam you crushed, are the details that go first.
| Time since learning | Savings |
|---|---|
| 20 minutes | 58.2% |
| 1 hour | 44.2% |
| 9 hours | 35.8% |
| 1 day | 33.7% |
| 2 days | 27.8% |
| 6 days | 25.4% |
| 31 days | 21.1% |
What to put in it
Anything that counts as evidence. Most of my entries are small. Someone thanked me for helping them study, I finished something I'd been putting off, I asked a question in a big lecture. Big wins go in too, but those are the ones you're least likely to forget anyway.
Copy compliments word for word. "She said I explain things really clearly" hits a lot harder six months later than "got a compliment." The same goes for feedback from a teacher or a manager, since their exact wording is the proof.
Log the times you did something scared, too, even when it didn't go perfectly. Showing up counts.
Making it findable
This is where my Notes app fell apart. A few habits keep a hype file usable after the first hundred entries:
- Keep everything in one place.
- Keep each entry to a sentence or two, and date it.
- Tag entries by type, like Compliment, Did It Scared, or Handled Pressure, so you can pull up one kind of proof at a time.
When to open it
Most hype files fail because people write in them and never read them. I open mine before interviews and applications, when I need real examples fast, and on bad days, when I'll read a handful of random entries. Once a month I skim the whole thing. That's how I noticed patterns in what I'm consistently good at, which I never would have spotted one entry at a time.
Keep it private
A hype file only works if you're honest in it, and that's much easier when nobody else can read it. Keep it private by default. You can always share a single entry when you want to.