[bovermyer]

I seem to remember reading somewhere that the average person can concentrate on one thing for a maximum of 30 minutes. After that, attention wavers and efficiency declines.

No idea where I read that, though. It might be rumor only.

[mattgreenrocks]

That can't be right. Concentration is not some magic ability only STEM professionals have.

[mathattack]

That seems low. I can concentrate for hours is the topic is compelling enough, and I'm not that atypical. But not 8.