ujm > The first one seriously learns for 10 hours; the second one seriously learns only for two hours, and is “battling” his other eight hours there.
I have two job candidates. One works hard the whole day and does not produce anything. Another – works great for two hours and then browses internets. Who would I hire? None of them. Why are your choices so poor?
Seriously, to the person who sits and sits and learns nothing. R Preidah who lived long had a student who required 400 repetitions to learn (note, he learned eventually). He might be better off going to work and having yissachar/zevulun parternship with someone. This is what someone who cares about this guy would suggest (one of the amoraim did this with his son who was not good at learning, then he tried to teach him business ..). If he has no other prospects and is financially secure, it is great if he sits and learns and gets his sechar – 1/400th of infinity is still infinity. Usual caveat – if he is using OPM (other people’s money) this would work only if there is a full disclosure to the donor, whether this is a private philanthropist or a taxpayer, and they are happy to fund his learning