Circle of Competence

i think circle of competence is essentially enabling you to do everything else you need to do with investing. You cannot value a business that you don't know anything about, right? If you have no idea what they do, there's no way you can value it. And so i guess, for me, investing, i think we over complicate it, and we try to find these genius investment ideas. But the reality is, you just even, i guess the amazon examp maybe isn't a great one,. but just think about, i did this videoand kind of a thought experiment: What were the 30 businesses, 30 companies, that i spent the most amount of money on in the