Since lately, the posts have been a little too complicated for some people, we are going to take it down a notch and do some simple addition. But it's going to be cool.
Okay, just follow along, and add up the numbers in your head. No calculators, or paper, just your brain. They won't be hard. Take 1000 and add 20. Now, add 1030. Got it? Add 1000. Now, add another 1030. And add 20. Did you get 5000? Congratulations!
What is so cool about this? The cool thing is that the answer isn't 5000, it's 4100. It's a problem that takes advantage of the fact that people hear the numbers, don't see the numbers, when they do this problem. Look at the pronunciation of the numbers:
one-thousand and twenty
two-thousand and fifty
three-thousand and fifty
four-thousand and eighty
What do you want to say next? Five-thousand, right! This is because you've said one-thousand, two-thousand, three-thousand, four-thousand. You naturally want to say five-thousand, and this urge is too strong to actually do it correctly.
Bonus: Since that post was a little shorter than the others, I will show you one more cool-ish thing.
Take the last two digits of the year you were born in
Add your age (as of December 31, 2011)
You are thinking of either 11 or probably 111
I was shocked when I heard someone saying how that was so cool, so I thought I may as well post it. But think about it, isn't the definition of age the current year minus the year you were born on? If you add the year of your birthday to your age, shouldn't you get the current year, or the year before it? I thought it wasn't that interesting, but you tell me if you thought it was cool.