What is microlearning and does it work?
Microlearning means learning in short daily portions of five to fifteen minutes, like Brilliant's interactive puzzles or Khan Academy's practice sets. It demonstrably works for understanding and consistency, because spaced repetition anchors knowledge better than marathon sessions.
The idea behind microlearning is cognitively sound: brains retain more with spaced repetition (a little every day) than with cramming, and a daily mini-habit survives where the weekly evening course dies. Platforms build on that smartly: Brilliant wraps math, logic, physics, and programming into interactive puzzles of a few minutes, with streaks rewarding the habit. Khan Academy's mastery system does the same for school subjects, free.
It works especially well for two goals: building conceptual understanding (why something works) and keeping knowledge warm. Brilliant does not make you grind formulas; it lets you discover the insight yourself, and that sticks. DataCamp and Codecademy teach in similar short interactive bites.
The limit is just as clear: you do not learn a profession in five-minute snippets. Complex projects, deep focus, and portfolio work need longer sessions. The ideal mix for most learners: daily micro-practice to hold the rhythm and the foundation, plus one or two longer building sessions a week for depth.