> I always find it interesting how knowledge makes it hard to comprehend the difficulties other people have.

Once the mind had bootstrapped itself to a concept, it is very hard to empathize with your past self unless you took cares to document the difficulties while still in the confused state, articulating as much detail and as many fallacies encountered as possible.

I always liken it to Wittgenstein's analogy -- don't throw away the ladder after having climbed up upon it!