In a 2006 experiment, volunteers separated by a curtain had to convey an emotion to a stranger by touching only their forearm for a few seconds. Anger, fear, disgust, love, gratitude and sympathy were recognized 48% to 83% of the time, versus about 25% expected by chance. Touch is an emotional language in its own right.
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.