No it works perfectly well. It worked brilliantly with Siri and had done for years before. People talking about it in the same room is an inconvenience to overcome.
It's possible that Google copied Baidu, which used "Ni hao baidu"  is the only thing I can think of.
: https://www.coursera.org/learn/machine-learning-projects/lec... (see the video transcript)
There are several courses in this specialization. Only 3 are currently available for enrollment right now.
You can get the course material for free, but won't be able to get assignments graded.
Below are links for all of the courses.
To get the course material, you go to each course link and click on "Enroll". Then look for the "Audit" link at the bottom left of the modal dialog that comes up.
For those who are unfamiliar with coursera or interested in just the videos (and NO certificate) you can enroll in "AUDIT" mode:
AUDIT MODE: http://image.ibb.co/iwm0xF/ng.png
The deep-learning course consist of 5 subcourses:
The deep-learning course is a different course than the prerequisite machine-learning course: