Futuristic / Sci-Fi Discovery

Dear Aliens

If you're not from here: we had a thing called advertising. We matched attention to messages in real time. Ranjan Dasgupta built the systems that did that—exchanges, auctions, yield optimization. Billions of events per day.

It wasn't perfect. We argued about privacy and clutter. But it funded a lot of the internet you might be reading. For the human story, About. For the systems, programmatic and exchange architecture. For the future we imagined, ads in 2100. Proof I was here. Contact (if your species does that).