Alternatively: the magic of helping yourself remember something.
Often enough I brew up something interesting in my think-pan. And though it isn’t guaranteed to actually be something of value, I try to remember it for later, so I can write it down or do what I thought of. But just trying to remember it won’t do, I usually end up forgetting even though I tried my hardest. So I stop trying and just assist myself instead. An email addressed to myself, or a reminder on whatever device I’m currently working from. That’ll show me!
But before it even gets a chance to do that, I show myself. I come home, sit down at my desk, and before even looking at my mailbox I know what I’m going to see. Not a heartbeat later I’ve automatically translated that into the thing I was trying to remind myself of and bam, I get on with it. After I’m done, I’m staring at my inbox, wondering why I sent myself that reminder mail if I’d just remember it on my own.
But that doesn’t happen when I don’t attempt to remind my future self. Guess actively doing something with a thought really does do wonders for retention, huh?