I also feel there's probably a little truth in his bold statement about helmets only being affective under 15 miles per hour. I couldn't guess at the speed in which a helmet becomes inaffective, but with the stress on meeting DOT and Snell requirements, I'd imagine helmets are more engineered towards passing those tests than being as affective as they could be in a crash. I mean, making and selling helmets, at the root of it all, is a business, right? The bottom of line of any business is profit in today's soulless world.