That's why I never recommend people to go into PhD programs for career advancement. I have a colleague who works 50% as an NLP PhD student and 50% in my data sc

That's why I never recommend people to go into PhD programs for career advancement. I have a colleague who works 50% as an NLP PhD student and 50% in my data science team. To really get that PhD done you have to live and breathe for the subject, and only the subject, for however long it takes. He's been on this track for 2 years now and is thinking of quitting, his own words; "I often feel like if I really wanted PhD, I wouldn't be working so hard building models for industry all the time".