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Our editors' picks — the ideas most worth understanding right now.

AGI promises machines that can learn anything. We unpack what it actually means, where we are today, and what the debate really boils down to.

Psychology

Why your brain delays on purpose, and the cognitive loops that keep you stuck.

Finance

The mathematics behind exponential growth — and why starting early matters so much.

How do recommendation algorithms actually work? Here is the short version.

Every platform tracks what you watch, pause on, skip, and share.
Collaborative filtering finds users similar to you and surfaces what they liked.
Content-based filtering matches item attributes to your past preferences.
Engagement signals — not enjoyment — drive most ranking decisions.
This creates filter bubbles that are hard to escape without deliberate effort.

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