[arnoud-buzing]

It's used in more places than you'd think, e.g. Alexa:

https://news.ycombinator.com/item?id=18726804

[phonon]

That's Wolfram Alpha.

[carlob]

And what do you think wolfram alpha technology stack is built on?

[phonon]

Yeah, but at that point, we're already another step removed...okay, partial credit.