+1, ROTFL.
Correct me if I'm wrong, but don't we spend less than 30% of the day in darkness?
(Yes, I know that the time spent on the road trucking is probably less than 30% in darkness. This just felt like a sampling bias. Like: http://www.insurance.com/quotes/article.aspx/Car_Accidents_H...)
I'm imagining a future headline: "Dateline: 2027 -- scientists discover that overuse of blue light causes depression, hallucinations, amnesia, homicidal tendencies."