10% of the brain myth

Popular myths, urban legends that people repeat as if they were true. Huge pet peeve of mine. Here's a couple with some links to check out if you find yourself believing the myth.

• False: We only use 10% of our brains source
• False: Bill Gates once said computers would never need more than 640KB memory, source 1, source 2

And swimming after eating won't give you cramps and swallowed gum does not stay for years in your stomach. Feel free to Google those if you have doubts.