A man ejaculates around 300 million sperm in sexual intercourse. That means on the night each of us was conceived, 299,999,999 other sperm were vying for the finish line with the one sperm that became us. A wrong turn down the fallopian tube, a faulty flip of the tail, and one of the hordes of barreling competitors would have outswum us, won the trophy of our mother's egg, and would now be living our life instead of us. How easily this planet might have been home to a completely different set of inhabitants!
Nothing we will ever accomplish in life—not if we win a Heisman trophy, a Nobel Prize, or the presidency—can compare to the improbable victory we achieved to get here.