1
vote
3answers
217 views

Is It Worth The Time?

There was an xkcd recently that raises an interesting question, which I would like to pose to Productivity.SE. The math of the chart is undeniable, so I am not asking "how much time is saved by doing ...
6
votes
1answer
169 views

What does science say about productive learning time?

I wonder what science says about how to set learning time. Specificially I wonder about how to mix learning and free time. This is of course related to the attention span. My rhythm looks the ...