Variance & Covariance Cheat Sheet Starting points (where every derivation begins) Everything below is derived from these definitions. They're the…
I usually have a concrete plan in advance of writing, but today’s letter is totally spontaneous, other than knowing that…
Follows from Part 1: uncovering the laws of nature Friends, In Part 1, I teased that Geoffrey West’s Scale was a perfect surface…
A few quick hits on the topics of education and learning. Childhood and Education #18: Do The Math | 15 min read…
I went to Catholic school for K-12. Public schools were less than good where I grew up. My kids go…
This week I taught Class 5 of the Investment Beginnings series I’ve been doing with the 12+ year olds. my…
My wife started the Math Academy diagnostic on Sunday night. She couldn’t remember that if you raise a number to the 0th…
I really hope to be helpful today so bear with me as this isn’t the rosiest way to begin. This…
This video is the best articulation of why poker is used to train traders. https://youtu.be/uFyoIeBElQc From the description: Jerrod Ankenman,…
Friends, This is a follow-up letter I wrote to someone who called me interested in learning to trade. Look, trading…