From the Kepler satellite data on exoplanets we know that a substantial fraction of Sun-like stars have a planet the size of the Earth roughly at the same separation. Since most of these stars formed billions of years before the Sun, the dice of intelligent life was rolled tens of billions of times within our own Milky Way galaxy alone. It is very likely that Albert Einstein was not the smartest scientist that has lived in the Milky Way since the Big Bang.
