Why the Myers-Briggs test is totally meaningless

From the article:

> If private companies want to throw their money away on the Myers-Briggs, that's their prerogative. But about 200 federal agencies reportedly waste money on the test too, including the State Department and the CIA. The military in particular relies heavily on the Myers-Briggs in deciding on promotions, and the EPA has given it to about a quarter of its 17,000 employees.