Our sleep has regular cycles and rhythms. It seems the intercontinental airline flights are arranged to blend with human sleep cycles. This mapping of worldwide airline traffic is interesting. I wish the interruptions, unscheduled changes, etc. in the airline flights could be controlled as easily as our obstructive sleep apnea.
Very interesting blog post thank you for writing it I have added your site to my favorites and will be back
By the way this is a little off subject but I really like your web page layout.
Great post!