I can’t think of any more human activity than conducting science experiments. Think about it — what do kids do? … They’re turning over rocks, they’re plucking petals off a rose — they’re exploring their environment through experimentation… We explore our environment more than we are compelled to utter poetry when we’re toddlers — we start doing that later. Before that happens, every child is a scientist. And so when I think of science, I think of a truly human activity — something fundamental to our DNA, something that drives curiosity.