For those curious, last night I read this[0] paper and today found this[1] to be in the top spot of HN.
[0]: https://people.idsia.ch/~kowall/papers/GECCO-07.pdf
[1]: https://news.ycombinator.com/item?id=38475545
Potentially it is recency bias. Like when you learn a new word, and suddenly see it everywhere. Also potentially it could be something more troubling, like being infected with malware. I don't know your setup or how vigilant you are, so it's impossible for me to just say you're infected or are being tracked.