It should be noted that I've upvoted every single person who's disagreed with me here, as far as I know. That said. In 7th grade, I took an SAT test without preparing for it at all, it was spur-of-the-moment, I knew about it about an hour ahead of time and didn't do any research or anything. I scored higher on it than the average person using it to apply for college in my area. An IQ test has shown me to be in the 99.9th percentile for IQ. This is the highest result the test I was given reaches; anything further and they'd consider it to be within the margin of error for that test. My mother's boyfriend of 8 years is an aerospace engineer who graduated Virginia Tech. At the age of 15, I understand physics better than him, and I owe very little of it to him, as he would rarely give me a decent explanation of anything, just tell me that my ideas were wrong and become aggravated with me for not quite understanding thermodynamics. He's not particularly successful as an engineer, but I've met lots of other engineers who aren't as good as me at physics, so I'm guessing that's not just a result of him being bad at it. I'm also pretty good at engineering.