YouTube videos and games are not comparable. Movies are shot at 23.98 FPS, I'm sure everyone here would agree that's unbearable for a game, yet it's fine for movies. This is because there's motion blur which masks the stuttering present with lower framerates - this motion blur is present in all videos including YouTube. I can't use my old PS3 because 30FPS is just intolerable after you've felt the responsiveness, clarity, and increased illusion of motion present in 60FPS content. Does it give me a headache? Not really. I was being hyperbolic, but it is hard on the eyes and genuinely impairs my enjoyment of the content. This is what raw, progressively-scanned 30FPS content looks like without the benefit of movie motion blur: Gfycat Video - Click to Play - Direct Link Top is 60, bottom is 30.