[mark_l_watson]

UPDATE: I now have macOS Sierra installed. Seems fine enough and I enabled Siri on my laptop. I must say that Siri has some catching up to do with Google Now which answers my questions (usually) and does not just give a few web links like Siri does.

edit: I just tried more "calculation style" Siri queries that kicked in Wolfram Alpha, and those results are nice!