The ultimate superpower...what could that be? Is it invisibility or flying? No, it is most definitely the power to read someones mind. However, the power would only allow you to read someones mind if you wanted to. To read everyones would be confusing and very hectic. Just think, if your arch enemy were to battle against you, you would know what his exact moves would be to try and defeat you. You could counteract his motives and defeat him with ease. On the days where you're not saving the world with your superhuman powers, you can use it to detect liars and fakes that try to scam their way into your life, truly know who your real friends are, and even make money on the side from being a psychic. In the romantic aspect of your life, you can court a nice lady or man by knowing all their favorite books or music. You would be able to know who is "the one" and marry and live happily ever after... or so you'd think.

The ultimate superpower is mind reading. It would truly make life incredible if you were to yield this power. However, I don't think that jumping in radioactive wastes will achieve it.