by John Macdonald | Feb 8, 2026 | Human, The250
We think the universe is about 13.8 billion years old. If we laid that out on the ground at 13.8 miles, your lifetime is about 1/2 an inch. If we put 13.8 billion years into a 24-hour day, all of human civilization shows up in the last blink before 11:59:59. We think...