Nov
23rd
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23rd
One can imagine the number 10 billion. It is the amount of money Bill Gates’s net worth changes by each time Microsoft increases or decreases its stock value by 10 points. The total number of people that have ever lived on Earth is perhaps 50 billion. Counting to 10 billion would take you 100 years, if you counted as fast as you could and didn’t take a break. Spending 10 billion dollars, on the other hand, takes Congress less than an afternoon.
— Lawrence M. Krauss