Is it a good idea to get a math/stats/theoretical cs phd after 33 in the hope of becoming a professor? I am an electrical engineer who did his phd in EE at a low ranked school. I have been working in industry with a lost soul. I did enjoy my research and published quite a few papers. I have taken courses till Algebraic number theory and audited lectures on etale cohomology. I am thinking of a decent school like UCLA or UC Berkeley to pursue a second doctorate.