I've seen 100+ people post GPT-6 Astra demos where it builds 3D games, and those are cool, but that's honestly not the part I can't stop thinking about. Millions of people can turn an idea into a printable object, a CAD file, a Blender model, or a circuit board, without having to become a full time 3D designer first. So how many thousands of $1M+ businesses come out of that? Well, you'd pick a niche that constantly needs small custom parts. A few examples: 1. Gyms with broken equipment…