Anatoly Wasserman. (№ 405276)

The proportion of correct decisions made by a person can serve as a quantitative assessment of the mind. And again, as far as I can tell, people who make the right decisions in a fairly wide area can be considered smart in general. In addition, the mind is also a profitable business, and, as a rule, those who improve faster and do not hesitate to learn constantly turn out to be smarter.