> there's nothing stopping a 17-year-old from writing poetry, learning guitar, and also learning about how LLMs work, if they're so inspired.

I assume the people at HN are intelligent enough to understand this without me having to explain the most obvious banalities to them. The point is why you would do anything at 17:

> if they're so inspired

You said it yourself. The Twitter post, to me, reads like career advice or something in that vein. One has plenty of time to run the wheel like a lab rat later, but at that very point in life you have possibility to find the thing that truly inspires you, that is its own motivation.