I worked with GPT-6 Astra to build a marble run simulation where a marble rolls, bounces, and flies through an hour-long Rube Goldberg machine filled with trampolines, springs, ski lifts, parachutes, and much more. Check it out here: https://emergentmind.com/marble-run Hat tip to my wife and kids for suggesting many of the elements, including the parachute, speed tunnel, bendy stick, cannon, and catapult. If you have a second monitor, I'd recommend using the fullscreen icon to fill the…