For those that want to spend some time trying to figure it out - take a look at MITMproxy, find proof that they are spying and show us.
This was my first thought. I haven't taken a look yet, but I suspect that if an organization this large was doing something so nefarious, they'd encrypt/encode or otherwise mask what it is their doing. Perhaps, by misdirection, odd naming of params, or outright encryption - take this all with a grain of salt, my domain is server-web, not mobile.
Another theory: At some point you looked at a web page that mentioned projectors, or you happen to be in a demo that frequently buys projectors, so you saw an ad for projectors.
I know which theory I'd buy. These conspiracy theories pop up constantly, they're quite tiring.
I've seen an ad on Instagram of a t-shirt that says "Winners are born in $MY_BIRTH_MONTH", which is quite transparent targeting...
I think a lot of folks here are gonna disagree with that.
It's more likely that you and the friends posted pictures at around the same place/time your friend later googled micro projectors and was tagged via an embedded like button on the page (yeah... those things track you!). Then they just made a jump that two people in the same area may have similar interests and served you an ad.
It's just like how I get recommendations for people I've never met before after attending an event that we both just happened to go to.
On the other hand, nearly _everyone_ I talk to has experienced these mind-reading ads - if this happens solely through correlation of social networks and their online activity, it is maybe even more mind-blowing than the conspiracy theory, and brings up scary questions about what we should expect from AI in the future.
Some experiments discussing obscure products should help determine.
I still get targeted ads based on my FB posts, but that's the accepted trade.
What moral obligation does a developer have, if any, to expose this sort of "feature"?
The mob came when Snowden et all exposed the large passive-collection programs run by the federal government - do people not believe that we have the same protections from private companies as we do from public entities? Yes, it's their app and I don't have to download it, but we're talking about covert activities - aka spying - that a user has not consented to.
You wouldn't let General Electric put a "passive" video camera in your oven to capture what goes on in your kitchen for the sake of a "better cooking experience" or "personalization"; our digital real estate should be no different.
Instead of a random conversation, keep repeating a certain outrageous/uncommon phrase (say Korean cuttlefish snacks) and monitor your feed to see if any weird ads appear.
My guess is that Facebook/Instagram probably categorised your profile as someone who enjoys the outdoors and watches movies (which can be said of a large proportion of the world population), and knew that you might have been hiking then (location tracking and possibly via your face appearing in a friend's post?). Consequently, a "relevant" ad was pushed to you.
Not 15 minutes later, he comes around to me and says "What was the name of that company?" I reply, and he goes, "wow, that's strange - I just got an ad for them on my FB."
Again, I've never heard about the company before or later.
Well, it's going to come out, and when it does, people will go from "what?! that can't be true" to "well duh, what did you think?! everyone knows that".
Creepy, but not "listening to every word you speak" creepy.
Was this just a case of a random though possibly slightly profile targetted, advert happening to appear during the time he remembered the conversation. Did he get ads for everything they discussed?
This post never shows "how" ig uses a mic, just theorizes about it without any proof.
Personally I am sure that I am tracked online, but I block ads very aggressively so at least there's that.
The "stories" feature that they knocked off from Snapchat would definitely use audio.