At the Apple Press Conference last week Steve Jobs mentioned that
every day, 230,000 iPhones are being activated. I don’t know about
you, but I don’t really understand how many iPhones that really is. I
can’t hear that number and conjure up an image in my mind of 230,000
phones. This problem exists in any situation involving very large
numbers. From space travel (it is almost 26 trillion miles to Alpha
Centauri) to population of the United States (312 million), it is very
difficult to truly understand numbers like these because we have no
frame of reference.
We can relate to numbers like “fifteen” because we’ve had that many
people in a meeting before. We can relate to four, because that’s how
many times we’ve had to fix the leaky sink. We even have a pretty good
understanding of the number one hundred, because that’s about how many
M&M’s are in a bag. But we have never seen 230,000 people, leaky
sinks, or M&Ms. To help you understand how many iPhones are being
activated every day, here are a few examples to help you develop a
frame of reference:
…If 230,000 gallons of water were in a cube shaped tank, each side
would be almost 10 meters long.
…If 230,000 people wanted to go to a Dallas Cowboys game, it would
take a three stadiums to seat all of them.

…If you wanted to travel 230,000 miles, you’d have to make more than 9
trips around the Earth. But you wouldn’t even make it once around
Jupiter.
…If a person was a mile tall, it would take almost 230,000 people,
standing head to toe, to reach the moon.
…If 48 Mt. Everest’s were stacked on top of each other it would only
be a little taller than 230,000 6ft tall men and women standing
head-to-toe.
…If you go back 230,000 days, a feudal lord would just be waking up to
start the work week on a Monday in December of 1380.