I don’t agree that people with an IQ of 165 are going to learn 10 times faster than some one with an IQ of 120. There is no evidence to support that metric. You can be a slow learner and still be really smart.
I also don’t agree that really smart people cant have anything in common with people who are not as smart. I enjoy playing golf and I don’t care how smart the person is that I am playing with. They just need to be fun to be around.