Elderly people cannot comprehend the fact that times change. By the day. Comparing gravity to video games is not a way of making a point. They are two completely irrelevant things.
And sickly color? Yeah, honey, its called Adrenaline Flux. And it is kicking in so much because the doses are not constant and small, they are rare and big since your kid does not play games so much.
If you are worried about what types of games your kid will play, kudos cause seriously most parents do not give a damn. But that is not a reason for your kid to not enjoy a good Burnout or SSBB or Batman Arkham Asylum. If the boy eventually gets a console and goes to buy a game, go with him. Not all games need violence or carjacking or drugs to be good. I do not even own a GTA and I go to the gym, play soccer and stuff. But I always love me a good race of Wipeout HD. Do not punish your kid for stuff he likes. Dive into them and learn. Do a bit of research which shouldn't be too hard since you can post a freaking article on the web.
Video games are not made by Satan. They are just bought by kids who aren't ready for them. Parenting is hard, yeah and I have somewhat experienced it since I have a small brother. But you cannot get scarred but something as common as a boy playing games. Come on. Scarred for life? Other people got amputated due to gangrene during the 1918-1919 Global Influenza Pandemic and you get scarred from this? You are at a disadvantage. If you do not let him play, he will find another way and you will be the bad guy. Come to terms with it and...well, if the kid buys a Wii, join him. You will have a blast.
But even after I have said all this, you lady are pretty short-minded. Again, due to a comparison. Quantum Physics? I bet you do not even know what it means. QP is something accessible to everyone but not something that everyone can enjoy. VG are something that is accessible and everyone can enjoy them. And since you brought up Einstein, did you know that he was an accountant in a bank and his first papers to Physics collected dust for several years. He was ignored at his beginnings. Just like you ignore your boy. Consider it. Learn from mistakes the other parents did and avoid them. Again, do not punish your kid for something as trivial as the fact that he likes games. If you brought him up as well as you say you did, there should not be a problem. There would be, if you think you cannot handle it as a parent. Can you?
Here the question. Do you not let your kid play your games because he is not ready for them or because YOU are not ready as a parent for this?