>>14387907You can't have both quality and quantity simultaneously, the brain needs time to process and digest information.
alot of the time the brain spends digesting information is in the background when you are doing other things , or when you are sleeping.
your brain is subconsiciously linking ideas and concepts together. it can't do this when you are feeding it new information. you can't build depth and breadth at the same time
if you really do deep learning you won't be able to go for 10 hours straight.
for retention you are better off studying 2 hrs 5 days in a row vs 10 hrs in 1 day.
there are diminishing returns for every extra hour you study.
>>14387950 is right. 10 hours of study might be good if you are cramming for a test but most of that will have been forgotten in a week.