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Comment "YC" and I'll send you the full list. YC just told 10,000 founders to stop building SaaS. Their latest request for startups skips software almost entirely. Hardware, biology, even space. A dozen ideas, most of them in the physical world. Here's why. AI dropped the cost of building software by 100x. Another SaaS product isn't a moat anymore. The friction moved into regulation, hardware, supply chains, the spaces that used to need years of operating experience just to enter. A few that stood out: AI for agriculture to cut pesticide use. Reinventing the semiconductor supply chain. And software built for AI agents, not humans, since every interface right now was built for someone clicking buttons, not an agent reading code. Which one would you build? 👇 #ycombinator #startupideas #venturecapital #buildwithai #foundertips