Google Finally Answered the Question Nobody Was Asking Out Loud

There's a thing that happens at big tech conferences. You sit through an hour of polished demos, applause lines, and customer success stories, and somewhere in the middle of it all, a single slide quietly destroys a problem you'd been working around for months. That happened to me while watching Google Cloud NEXT '26. The announcement wasn't the flashiest one. It wasn't the 8th-gen TPUs (though those are genuinely wild). It wasn't Gemini 3.1 Pro. It was something called the Agent2Agent protocol