Interactive Simulations in Gemini

Google just dropped interactive simulations into Gemini, which means instead of just text-dumping answers, you can actually mess around with the concepts you're asking about. It's the kind of feature that makes AI feel less like a fancy encyclopedia and more like something you can poke at — which is honestly long overdue. That said, I'm curious how deep the simulation actually goes versus just being a flashy skin on top. If anyone has actually tried it, I'd love to hear whether it's a real tool or just UI theater.