Imagine running into a younger version of you on the street.

What advice do you give?

Even the deep insights you learned would be hard to impart.

You can only learn the deepest insights from experience.

This is the Hallmark card fallacy.

The deepest insights you will discover are ones you've already heard a million times before... you just weren't ready to hear them before.

That means you can't pass them onto others, no matter how meaningful the revelation is for you.