Physical AI: 5 Classifications of 'Robot Brain' Companies and the '3 Bs' Investors Should Target

The Generative AI boom from 2023 to 2024 was primarily a revolution in 'digital space,' involving text, images, and code. However, from 2025 onwards, the frontier of AI is clearly shifting toward the physical world. We define this as the rise of 'Physical AI'. This transition is not merely a technical advancement, but a structural inflection point that is driving demographic changes, supply chain restructuring, and a qualitative shift in the labor market.