We all know the shortcomings of digital advertising. You buy something online, and for days afterward you might be deluged with advertisements for the very same product on Facebook, Instagram, or wherever you digitally roam.

There are two big problems with our current digital advertising system. First, many consumers hate it because they feel like their privacy is being invaded. Who knew I wanted a garlic press, and how did they know it?

And, second, it’s not as effective as it could be. I’m unlikely to buy more of what I’ve just bought. So why does no one ever try to sell me a bag of garlic instead of another press?

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