

Thats what I mean. If you put 100 people in a classroom, teach them something, and then filter out all the people who didnt learn anything youll be left with a pool of people who have been effectively educated. That works great if you are trying to create an educated class of professionals with specific skills and knowledge. However, if you are trying to improve the education level of society as a whole you are still stuck with all the people who cant or wont learn. You end up with training thats about as effective as a mandatory slide show, which is maybe better than nothing, but also not very good.
If schools used to teach critical thinking skills effectively then older people should be more resistant to disinformation, not less. Since that is not the case we must conclude what they were teaching before was not effective against this threat.