http://www.lockergnome.com/sherman/2011/12/15/a-waste-of-time-or-an-investment/

Who needs a reminder that life is short? Sure, we all have hobbies and pastimes, but can you justify yours as being truly rewarding to some degree, or would you write most of them off as a waste of time? The line between them may be so thin as to be invisible, but it never hurts to evaluate the ratio between reward and roadblock to productivity.

You can watch the entire live TLDR episode here:
http://youtu.be/mg3ulGhaZ_k

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