I was an kid pre-NES, and got an old system at a yard sale for my kids. I quickly learned that I could reseat it 20 times, clean it with alcohol, pencil eraser,

I was an kid pre-NES, and got an old system at a yard sale for my kids. I quickly learned that I could reseat it 20 times, clean it with alcohol, pencil eraser, whatever sane tactic, none of them worked as often as blowing into the cartridge. I had never heard of blowing into the cartridge before. I didn't get the technique from other kids, and I had never had to do it with Atari, Intellivision, C64, or any other system. I learned it out of desperation, and it worked. I don't care what scientific evidence or common sense points to the contrary, it worked.