In 1993, a study in Nature reported that 36 students did slightly better on a spatial task after ten minutes of a Mozart sonata, an effect that vanished within about fifteen minutes. The media turned it into “Mozart makes you smarter,” and in 1998 Georgia's governor requested $105,000 to give every newborn a classical music CD. Later meta-analyses found only a tiny effect, or none at all.
Remembering is not replaying a recording — it is rebuilding. Each time you recall a memory, it becomes temporarily malleable and can be altered before being stored again. That is why two people can sincerely remember the same event… differently.
In 2003, Johnson and Goldstein compared European countries. Where you must tick a box to become a donor, consent rates ranged from 4% to 28%. Where you're a donor by default unless you opt out, they topped 85%. People aren't more generous on one side; most simply stick with whatever option was chosen for them.