Critics have accused him of allowing his religious convictions ​ — he is Roman Catholic — ​ to cloud his scientific judgment. Others claim that his reasoning is unscientific.
તેમ જ બીજા વૈજ્ઞાનિકોનું માનવું છે કે બિહીનું શિક્ષણ વિજ્ઞાન સાથે સહમત નથી.