Tracy: Doctor Spaceman, when they check my DNA, will they tell me what diseases I might get, or help me to remember my ATM pin code? Dr. Spaceman: Absolutely. Science is whatever we want it to be.
Remember those assignments when you were little about what you wanted to be when you grow up? You might hear doctor, astronaut or Navy SEAL. Jonny... Navy SEAL-turned-doctor-turned-astronaut says he ...
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