Somehow Google figured out that I speak Spanish even though I'm on a phone set to English in Japan on an English website... yet it's completely and utterly failing at ad targeting. 
pic.twitter.com/LWxgzi4Ov3
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If you chat in Spanish with your friends they can probably infer that from the keyboard app
Websites don't have access to keyboard history. The point isn't whether they can guess I'm Spanish (they can). Then point is it doesn't make any sense to guess that right and get the rest of the targeting so wrong.
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to me ad targeting still has a long way towards improvement
Thanks. Twitter will use this to make your timeline better. UndoUndo
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