I’m staying with in-laws, both retired bankers with a lot of disposable time and money, who have Alexa in every room.
I am connected to their network, which their ISP, Google, etc. can determine by my IP address.
Last night, before bed, kitchen conversation briefly turned to the topic of people buying too much house via interest-only mortgages and ending up under water, and then to a friend who lost his shirt gambling on real estate appreciation before the 1980s oil bust, and then to some general investment advice for the benefit of my nephew.
Then, not five minutes later, when I brought up YouTube on my computer, for the first time EVER, YouTube served up ads for investment services