The reason, generally, is simply that all those times previously we weren’t tuned in to notice what’s top of mind now. The frequency likely hasn’t changed a bit just our noticing of it has.

Also known as the Baader-Meinhof Phenomenon.

The frequency illusion: we notice what’s top of mind

The moon seems smaller when up in the sky and bigger when on the horizon. I was surprised to learn that the real cause is still disputed.

The moon illusion

The Hermann Grid, the Necker cube, and the Blivet

Sketchplanations tagged with illusion