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[0:00]the difference between knowing and understanding.Now this isn't an explicit definition, but knowing, we can think of that as horizontal development. It's domain expertise. You're accumulating facts, you're memorizing insights, you're studying the textbook, you know things.And understanding is vertical. It's it has more to do with the sophistication of your cognitive operating system. So you can know a lot and understand very little.You can also understand deeply and know relatively little. But if you understand more than you know, you can still act more effectively than the person who thinks they know everything.And that's exactly why smart people are stuck. Is they read books, they collect knowledge, they develop themselves this way, but they can't see anything above that.They can't see into other domains.