It’s a little known fact that the inventor of Powerpoint attributes the inspiration for the tool to the mass of TeX that Whitfield Diffie uses for most of his presentations.

I know this is true, because Whit told me so. 😎

In the spirit of presentation education my colleague Geoff shared the following with me: [www.norvig.com] ; there is an HTML rendition for those who dislike presentation tools of any kind.

I found it rather amusing.