Vlad Tenev says mathematics offers a ladder of achievement in which learners can identify the next hardest subject, likening the progression to a good video game.

“... you know, "What, what was the most advanced math that you did?" And I think math has this, like, ladder of achievement. It's almost like playing a really good video game.”

“Like, you always know what the next hardest thing is, and it's almost like how quickly can you go to algebraic geometry or algebraic topology, and can, can you, can you learn that earlier and kind of understand it?”