How long should I be able to spend on a mentally challenging task (e.g. hard maths problems) before I take a break?
If professors do such cutting edge and intellectual and creatively demanding work, how do they manage it with schedules filled with teaching, marking, and administrative shit?
>>7798786
'Bout tree fiddy
>>7798844
kek
>>7798786
You're not supposed to stop, but being a retard can't be help as mental faculties are 100% genetic.