Good economists are scarce because the gift for using "vigilant observation" to choose good models, although it does not require a highly specialised intellectual technique, appears to be a very rare one.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Good economists are scarce because the gift for using "vigilant observation" to choose good models, although it does not require a highly specialised intellectual technique, appears to be a very rare one." in the context of "John Maynard Keynes, Letter to Roy Harrod (4 July 1938), in The Collected Writings of John Maynard Keynes, Vol. XIV (1971), p. 297" to mean that wisdom is timeless.