Physical AI: What It Is and What It Is Not

# Physical AI: What It Is and What It Is Not Physical AI refers to AI systems that can actually interact with and learn from the real world through robots or physical devices, rather than just processing information on a computer. The article clarifies that this is different from related concepts like world models (AI that simulates how the physical world works) and digital twins (virtual copies of real-world objects), which are tools that support physical AI but aren't the same thing. Understanding these distinctions matters because as companies invest in robots and autonomous systems, knowing what "physical AI" actually means helps you evaluate which technologies are genuinely new and which are just variations of existing approaches.