Andrej Karpathy says we’re standing at a major shift in how we build software. He labels the old way as Software 1.0—humans writing every line of code by hand. Then came Software 2.0: neural nets trained on massive data sets, where model weights replaced many handcrafted rules. Now he declares Software 3.0: plain English becomes the interface. You no longer have to learn a programming language to issue instructions. You talk to a large language model the way you’d chat with a person. In this new era, prompts are the code and LLMs are the CPUs. All the layers of compilers, libraries and frameworks that existed because machines couldn’t parse human intent are suddenly optional. Karpathy points out that in just 40 minutes—presumably in his upcoming talk or demo—you’ll see why this matters. Once natural language serves directly as the programming medium, teams can iterate faster, non-developers can build tools, and the barrier between idea and execution nearly vanishes.