[skeptic_69]

ehhhhhhh I am not so sure the main limiting factor in going on to grad school is access to quality undergraduate education. a diligent student at the top public school in every state is probably qualified to go do research in graduate school.

I'd imagine a more limiting factor is the a) willingness to work really hard for 6+ years for uncertain rewards for the joy of research with very low wages. especially when you can go into industry and make 100k+ b) student loans-see low wages as an academic.

As an academic in ML at least-I think there are more than enough academics in the field or trying to get here....look at NIPs submissions!