What do physicist Stephen Hawking and director of engineering at Google, Ray Kurzweil, have in common ?
˙ 2-2-4 ɟo sɹǝqɯnu ɥʇɐqqɐs-uoɔɐq-sopɹǝ ǝʌɐɥ ɥʇoq ʎǝɥʇ :ɹǝʍsuɐ
For more (and the factette about Hawking and Kurzeil) see the Wikipedia entry on Erdos numbers or the Erdos-Bacon-Sabbath site .