I've worn the same brand and model of motorcycle helmet (Nolan flip-up) for probably 20 years. Granted, I'm sure Nolan has made some minor changes over the year

I've worn the same brand and model of motorcycle helmet (Nolan flip-up) for probably 20 years. Granted, I'm sure Nolan has made some minor changes over the years, but the aerodynamics of my massive noggin haven't changed, and I clean far, far fewer bugs off my face shield than in years past. Just my imagination? No, I have records of when I buy Honda Spray Cleaner and Polish (the pro's choice for cleaning face shields), and I don't buy as much as I used to for the same miles ridden. And old post of mine from six months ago when the topic came up, and everyone's all like "cars are more aerodynamic than they used to be" (yeah, well, my head's not), basically saying the same thing: https://news.ycombinator.com/item?id=29006969 https://news.ycombinator.com/item?id=29006969