The Sphere is the brain behind the functioning of every machine in Metal City. ⚙️ It is created by an AI system, which seems to help the city... for now.🤫 Metal is associated with the circle in Feng Shui, which is why the Sphere is an optimal shape to control the machine activities here. The Sphere is the brain behind the functioning of every machine in Metal City. ⚙️ It is created by an AI system, which seems to help the city... for now.🤫 Metal is associated with the circle in Feng Shui, which is why the Sphere is an optimal shape to control the machine activities here. OpenSea | Staking | Website | Twitter | Telegram | Announcements | Discord | Medium | Instagram | YouTube