one chance in

Scientists estimate that there are about 10²⁵ grains of sand on all the beaches of Planet Earth.   One chance in 10²⁵ is such an extremely rare possibility that it must be considered no reasonable possibility at all.  It would be like blindly jumping out of plane flying around the earth, landing on one of Earth’s beaches, then bending over and blindly picking up one grain of sand that had been painted purple.  Even if you were fortunate enough to randomly land on the beach where the purple grain of sand was located (out of the thousands of possible beaches), it would still be astronomically improbable that you would blindly bend over and pick up the one grain of purple sand, instead of one of the trillions of other grains of sand that would be on that beach.