The man had predicted that the 21st century would be ruled by someone or something linked to the number "666". It was thought that "666" was the number of the devil (think "Omen").
Well, you'd be amazed to know that "666" in Hebrew, the jewish language is written as WWW.
Yes!! You guessed it... The Internet!!
Call it as a twist of interpretation or whatever you will... but still, quite remarkable!