Son: Dad,

Dad: Son?

Son: On your Mac, open `Terminal` and then type the following command: "open /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf" What do you see? :-)

Dad: How did you get the Bitcoin whitepaper onto my Mac?

Son: I wasn't. It was always there.

Dad: Okay, ... Now I am speechless.

#Bitcoin