Agree. There are some areas where numerical affinity is correlated to actual work being done, say in number theory, but I've seen professional mathematicians st

Agree. There are some areas where numerical affinity is correlated to actual work being done, say in number theory, but I've seen professional mathematicians stumble over much lesser calculations. Without detracting from the auteur's own talents and achievements, it is of note that he teaches middle school math and is not working on actual research problems.