What is tools amplify capabilities cognitive amplification?

Example: A junior developer joins a team and writes code in a plain text editor — no autocomplete, no syntax highlighting, no integrated debugger. She is talented, but every variable name must be typed in full, every error must be found by reading, every test must be run by switching to a terminal and typing a command. She produces solid work, but slowly. Her senior colleague, who is no more intelligent, uses an IDE with autocomplete, inline error detection, integrated version control, and automated testing. He writes at roughly three times her speed — not because he thinks three times faster, but because his tool eliminates the friction between his intentions and their execution. Six months later, she has learned the IDE deeply. She now writes at his speed. Her raw ability did not change. Her tools did. The gap between her first-week output and her six-month output is almost entirely a tool gap — the same mind, dramatically amplified by a better instrument. This is what tools do. They do not make you smarter. They make your existing intelligence dramatically more productive.

This concept is part of Tool Mastery in the How to Think curriculum.