The life-and-death significance of solving “the problem of universals”

How the absence of Ayn Rand’s theory of concepts is responsible for every disaster of the modern world, from the mass murders by Islam jihadists to the (much larger) mass murders by the FDA, to the doctrine of “moral equivalency,” to Sam Bankman-Fried’s gigantic fraud, to climate hysteria, to the “disminding” of America’s school system.