Bryan Caplan argues that education much past early high school is mainly to signal to employers that you’ll sit and listen like a good replaceable robot. Unless you’re going to teach, when was the last time that high school physics was useful (never for me)? So why do we require students learn all this stuff they’ll never use in their lives?

Caplan says it’s all about signalling, and if you sit longer for more years of school you signal better and employers like someone that will sit down and do what they’re told.

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