Doing only interesting things tends to leave students with serious knowledge gaps. Anyone that's an autodidact or has interviewed/trained one will be familiar with this.

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bitwize 3 days ago | parent [-]

Discipline and grit are perhaps the greatest predictors for success. High intelligence and the foresight to know what to work on, per Hamming, will get you much farther, but with discipline and grit alone your chances of failing completely and ending up in the poor house are much reduced.

	▲	tonyedgecombe 2 days ago \| parent [-]
		The guys who empty our bins have discipline and grit. The same ones turn out regularly whatever the weather doing back breaking work. They work far harder than I do.