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I read your question as being about how facebook found out from amazon what you bought. I don't know much about web technology but it seems to me they don't nee
by Grustaf 9y ago
I read your question as being about how facebook found out from amazon what you bought. I don't know much about web technology but it seems to me they don't need to know, since the ads you mentioned came from Amazon, even if they're served inside facebook. So it's enough if facebook gives enough info to amazon so that the latter can infer who you are, then they know that you bought that bike.
It's somewhat encouraging that the algorithms are still so stupid as to advertise precisely the things you are least likely, a large infrequent purchase that you just made!
- MichaelGG 9y agoAre they stupid? I've cancelled and bought a competing product more than once, though not via ads (adblocker), just searching or reconsidering.
- Grustaf 9y agoI think in general you are not very likely to buy a new bike (or phone in my case) the day after buying one, but there may be exceptions. Perhaps it's enough to be so crude as to not take timing into account. I mean it IS true that people who buy bikes online once are likely to do it again at dome point.