Sunge @ justinsunthon posted his space flight Vlog of last year in Tiktok yesterday, which was quite interesting! After spending two billion yuan on a trip to space, Sun Ge suddenly realized that from space, the Earth was so small that any war or dispute was meaningless. If the future human activity radius is no longer limited to screens, cities, and the surface, then AI will definitely enter the real space from the digital world and eventually move further into the physical world. Recalling the four physics AI directions and tracks proposed by Sun Yuchen at the beginning of the year, I suddenly feel that they are very reasonable: one ⃣ Embodied intelligence: robots with hands and feet, physical AI bodies. two ⃣ Drones: Physical AI's eyes and hands at low altitudes. three ⃣ Spatial computing: the ability for AI to understand how far away the table is from you. four ⃣ Space exploration: the ultimate boundary of physical AI.