Master the basics first: why fluency frees working memory for harder ideas
September 28, 2026 · 18 min read
Alpha School's emphasis on fluency and basics, Sejnowski's point that you need both knowledge and practice, and Huberman's working memory research all suggest automatic basics free limited mental capacity for new material. It argues against rushing students ahead before foundations are solid.
The rules, numbers and steps worth keeping in front of you.
- Core idea: working memory is small; fluent knowledge does not use it up.
- Joe Liemandt: nail the basics first, the way a coach drills ball handling before dunks.
- Liemandt: aim for mastery of 95 percent or better, not 80.
- Liemandt: knowledge is layered, so gaps in a lower layer compound.
- Liemandt: repeated careless errors often mean working memory is full.
- The SAT student memorized her multiplication tables and went from the low 700s to 790.
- Liemandt: space reviews right before you would forget; cramming is bad.
- Liemandt: gifted students should write their work down before they hit the wall.
- Terry Sejnowski: knowledge and practiced skill are two systems, and both are needed.
- Sejnowski: practice actively; being told the answer does not transfer.
- Sejnowski: test yourself and think about a problem before sleep.
- Huberman: a phone nearby lowers performance; only out of the room restores it.
- Alpha's results are self-reported; independent trials are pending.
- Huberman: check with a doctor before trying dopamine supplements or medications.
This is the short form. The full insight has every expert's reasoning, their own words and the sources.