[tomjakubowski]

Take a problem like untangling a pile of cords. Writing out how to do that in text would be a drag, and reading those directions probably wouldn't be helpful either. But a kid can learn how to untangle just by observation.

Physical intuition is an enormous part of our intelligence, and is hard to convey in text: you could read millions of words about how to ride a bike, and you would learn nothing compared to spending a few hours trying it out and falling over until it clicks.

[bmicraft]

I think the bicycle argument doesn't work; you don't learn to ride a bicycle, you train to do it. Knowing how to do it isn't good enough, your conscious brain isn't fast enough to calculate and achieve balance. You need to train your reflexes to keep the balance for you.

[agnishom]

this is the "is all knowledge propositional knowledge" question

[bavell]

... training IS learning.