I have not had the pleasure of meeting Bill IRL but I follow his work online and have hade interactions with him on Twitter. His breakdown of Google's patents in layman terms is the sole reason why so many SEOs like myself have any understanding what so ever of the various Google patents and how it can/may impact SEO. Thanks for everything you have done for the SEO community.
I hope you make a speedy recovery Bill. Sending virtual hugs and well wishes all the way from Australia.
PS: I hope SEOs would stop saying "LSI Keywords" which I know he hates.