What Siri can and cannot do on a Mac

This fall, Apple brought its virtual assistant Siri to Mac desktop and laptop computers.
Virtually everything you can do with Siri on your iPhone you can also do on a Mac computer: Both can get a box score, play music, or bring up photos you took last week. But there are a few significant differences.
Let’s start with the good stuff.
1. Cards generated by Siri on a Mac are shareable
Ask Siri a question on a Mac, and a card is generated.
Without the need to do anything, each query produces