No matter how great someone’s achievements are in culture, art, philosophy, or politics, they can hardly transform this planet so drastically. Even a lifetime of dedicated scientific research wouldn’t allow one person to unravel the fundamental nature of time, space, fields, charge, mass, energy, force, the composition of the universe, or why the universe moves—these essential questions of nature.
Without obtaining answers from aliens, it would take generations of people on Earth, working together over thousands of years, to figure these out.