Comment by JuniperMesos

Maybe this is true for academic institutions granting the PhDs (although even this I am skeptical of, training a PhD costs a lot in terms of time, money, and human effort). But that doesn't mean it implies that the federal government needs to employ a thousand STEM PhDs just to get someone like Karpathy - indeed, Andrej Karpathy does not work for the federal government! He made his name working in the private sector!