I’m interested in helping friends tell the difference between fact and fiction, truth and hearsay and general stuff like that that gives peace of mind that they can defend themselves from gaslighting, makes life easier to live, and harder to be taken advantage of by propaganda. Just a few examples.

Bonus points if it’s free. I see one on coursera that runs for four hours per week for several months which works out at roughly over €100 https://www.coursera.org/specializations/logic-critical-thinking-duke