- IQ tests correlate with socioeconomic status
- IQ test scores vary over time and can be increased
- some IQ score increases, or some part of a given IQ score increase, reflects a genuine aptitude increase
- IQ tests are somewhat gameable in that training for IQ tests can increase scores so that some of the measured increase does not measure improved cognitive ability
where aptitude means something like fluid problem-solving ability, speed of learning, etc. rm -rf node_modules && npm install
but actually if you're only removing `node_modules` and you have a working package-lock.json already, what you want is `npm ci`; `npm install` can mutate package-lock.json and potentially expose you to supply chain attacks. If you use `npm ci` I think you don't need to `rm -rf node_modules`, either.