Neural Network with four lines!!!

A year ago, after listening to so many AI experts, and following their suggestions I started working on matrix multiplication, probability, statistics, calculus I wrote a one liner…. “keep an eye on algebra”
Believe me I am mesmerized by the sheer power of algebra. You might have seen my previous note on line.
Have a look at this video by Mr K Nayar. No higher mathematic… still lines and you have a Neural Network!!!