All,

About a week ago, Bill English passed away. He was a Xerox guy, who 
along with Douglas Engelbart of "Mother of all demos" fame, created our 
beloved mouse:

https://www.bbc.com/news/technology-53638033

I remember, back in the mid-1980's being part of a focus group 
evaluating Microsoft's mouse. Wow, time flies.

-Will

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