I was struck by this too. The culmination of technology we have in smartphones blows my mind when i stop to think about it. Something struck me while watching

I was struck by this too. The culmination of technology we have in smartphones blows my mind when i stop to think about it. Something struck me while watching the video on that page though 'if you want me to find the correlation between cervical injury and stroke - it would take me about a minute to determine that, and who determined that and on what basis' What would he have been using, at that time, to find that out?