Good info and not shooting at it at all, but I'm not sure it answers the question in my head. Maybe my perceptions are just wrong, but I'm not thinking just of concussions (which may have been partially addressed through helmet technology, etc.) or knee injuries. I'd be curious to hear about other injuries as well. I'd also be curious to hear about specific positions. It sure seems like QBs are more likely to be injured and miss games than 20-30 years ago. (Backup QB is now seemingly more important than last generation's clipboard holder). How many "non-contact" injuries have been suffered relative to a prior generation? My question isn't too precise at the moment, to be sure, but it sure seems like things are different than a generation ago and it doesn't seem like mere "nostalgia" or something. That absolutely could just be perception, but some basic (and albeit relatively quick) Googling hasn't helped get good information.