i had a crazy example of that today. i was looking at those dumb short facebook videos on my phone earlier and noticed an interesting book in the background of a podcast clip. then an hour or two later when i opened up my laptop i got a targeted ad for that exact book- an obscure book whose full title and author wasn't even visible when i first saw it. in the blurry background of this short video for 2 seconds. now how in the fuck would that happen. what could possibly describe it. what would be the technology required to accomplish such a thing.
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