This isn’t “frequency illusion” because my subjective frequency is unchanged, but the “Baader-Meinhof phenomenon” is likely making this diavlog on the psychology of optimistic bias more salient. That’s because I was reading a bit of Daniel Kahneman’s “Thinking Fast & Slow” yesterday concerning how good & bad moods affect System 1 vs System 2 thinking. The actual segment of the diavlog I linked to is titled “The optimal level of optimism”, but (as is made clear by the participants) that level is not “optimal” for accuracy. The depressed are known to be more accurate (this is called “depressive realism”) except in regard to the persistence of their depression. Tali Sharot claims in the link that the severely depressed are also less accurate, and that the mildly depressed are most accurate.
On the other hand, while searching on Overcoming Bias for support regarding “depressive realism” I came across this old post casting doubt on the concept.
On an unrelated note, Kahneman made a big deal out of priming in the book, beginning with the experiment where the word “Florida” causes people to walk slower (though he mentions later that those who dislike the elderly can react in the opposite way). He even says “You have no choice but to believe that you react this way”. So kudos to Kahneman that he has been so adamant about the need to replicate the priming studies in the wake of some failures to do so.