Last night, I asked the ALEXA DEVICE to instruct me on the difference between Magnesium and Manganese as 'food supplements'.....

  Within minutes, a link to this 'selling site' for Magnesium Supplements appeared .....in my FACEBOOK feed!........Scary 'Stuff', isn't it?   Although I was interested in 'knowing' about the body's Magnesium requirements, I declined 'clicking' on the Link, which would...certainly....produce even more Spam and Product Advertising....as well as 'more interjections from ALEXA, of course.....