Wait But Why
waitbutwhy.com
Tim Urban's long-form illustrated blog tackling big questions in science, society, and human nature with deep research, hand-drawn diagrams, and irreverent humor.
Why it is useful
Makes genuinely complex topics — AI timelines, the Fermi paradox, procrastination psychology, the history of humanity — accessible without dumbing them down. The posts are extremely long by web standards but consistently worth the time. The combination of stick-figure illustrations and rigorous research is unusual enough that the format itself is memorable.