Huh?

(1) Most engineers are NOT "wannabe doctors." The two professions are orthogonal. People who drop out of premed rarely go into engineering -- the classwork is at least as difficult, if not more.

(2) Regarding the "difference," no difference at all is presented. According to the article, a doctor makes a hypothesis "purely based on his experience and diagnosises [sic] the disease." On the other hand, a computer "correlate[s] ... symptoms with some disease with know symptoms." The two sound pretty similar, don't they?