I asked Claude build a physically accurate O'Neill cylinder you can walk around

Gruber Builds, a developer who creates digital simulations, built a physically accurate O'Neill cylinder using the island3 platform. The O'Neill cylinder is a hypothetical space habitat designed by physicist Gerard O'Neill in the 1970s. Gruber's simulation allows users to walk around and explore the cylinder's interior. The simulation is built using the island3 platform, which uses a combination of physics engines and machine learning algorithms to create realistic environments.