When I was a child, I always wanted to be a superhero. I wanted to save the world and then make everyone happy. But I knew that I’d need superpowers to make my dreams come true. So I used to embark on these imaginary journeys to find intergalactic objects from planet Krypton, which was a lot of fun, but didn’t get much result. When I grew up and realized that science fiction was not a good source for superpowers, I decided instead to embark on a journey of real science, to find a more useful truth.

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