On: A systematic study of the advice people would give to their younger selves

[distant_hat]

People can try giving similar advise to their younger nephews, nieces, etc and see the effect. The effect would be about the same of any advise given to their younger selves. Younger selves are excellent at ignoring advise from older ones.

[ekianjo → distant_hat]

Yup, and advices are rarely intemporal. Some things work better in certain contexts than others.