“Intelligence Without Ambition is a Bird Without Wings” We measure our lifespan in units of years — the time it takes the Earth to circle the Sun. Since the Sun was born, the Earth completed …
We measure our lifespan in units of years — the time it takes the Earth to circle the Sun. Since the Sun was born, the Earth completed 4.6 billion such circles. For comparison, documented human history covers only what happens during the last million... [7338 chars]