I don't agree with his claim that big tech advances are responsible for teen suicide rates, and definitely don't appreciate him trying to capitalize on it to push his own agenda.
I must say though,
>What passes for innovation by Big Tech today isn’t fundamentally new products or new services, but ever more sophisticated exploitation of people.
Topcoder is kinda flawed, but competitions like the IOI and ICPC are quite legit. In addition, `tourist`is the top performer on codeforces as well as basically any competitive programming site
I started chess at about 900 lichess, and plateaued at 1800(10+0 rapid).
What got me from 900-1100 was playing carefully and evaluating my move before I played it(can this piece be taken/is there a mating strategy for my opponent), to prevent blunders
What got me from 1100-1400 was learning two solid openings (Ruy lopez for both sides/ Grunfeld against 1.d4)
1400-1600 was doing hella tactic puzzles, and putting myself in my opponent's position and looking for his tactics
1600-1800 i have no idea, just practice i guess
John Bartholomew's strategy videos and Saint Louis Chess Club opening videos were probably the best resources for me to learn