And the 'making of mistakes' is predicate -- it ain't what we or they will be trying for. It will happen (and it's inevitable, it will happen) before things get learnt. B4 they get learnt at all. Because it's in the making of the mistakes (which comes after "trying things out" you know "to see if it will work or not") that we learn stuff.
I like what Robinson's on about -- it's not that some folks are 'more creative' than others, it's that some folks stifle it as a trade off. You can look mighty foolish going around being creative about stuff. You can fail. That can sting.
So how we create a culture of 'softer blows' in the classroom, where the sting ain't so mean? How to make a library classroom with padded walls? Haha.