It's a familiar feeling if you spend enough time on the internet: you talk about something in the real world, and then you see that same thing advertised to you online.

So could our devices be listening to us And is that how online advertisers are able to serve such specific ads In a new episode of "Terms of Service," CNN's Clare Duffy hears why it may not be that simple. Listen here and follow wherever you get your podcasts: https://link.chtbl.com/7hm_xGlm