Kevin Roberts 這樣解釋一萬億(trillion) (emphasis added)，
Let’s reframe a trillion as time and start counting backwards by seconds from New Year’s Day 2009.
One million seconds ago was December 20, 2008. It was just under a week before Christmas last year and retailers were worrying about the effect of the recession on Christmas sales. One billion seconds takes us back to April 24, 1977, around the time President Carter was pardoning Vietnam draft evaders and The Clash had just released their first album. One trillion seconds takes us back to November 16, 27,681 B.C., the peak of the Ice Age when Neanderthals were finally becoming extinct in Europe.
Ah-Ha! I get it.