Recently, I mentioned in an article on 'Geographic Arbitrage' that: Instead of blindly seeking ideas, it's better to go to Reddit or X to dig for real needs. Just do what you say. Because X's API is too expensive, I started with Reddit, which is a low-cost path that I have verified: Data source: Use http://(pullpush. io) to capture Reddit's historical posts (unofficial API, unable to check the latest, but sufficient). Filtering mechanism: Lock in the top 1000 most popular sub pages and filter out posts with high discussion heat (comments>30). AI analysis: Connect to OpenAI's API and use gpt-4o-mini to have the model scan through these discussion threads, identifying users' "complaint pain points" or "actively seeking solutions", and automatically summarizing potential business needs. The reason for choosing GPT-4O-mini is that it is fast, inexpensive, and fully sufficient for analyzing text semantics. This project involves Vibe coding from the front-end to the back-end, from data extraction to having AI organize requirements. Open the Thinking mode of GPT-5.1 to discuss ideas and technical specs with AI, and then submit the entire package to Codex to generate code. I ran on my computer all afternoon, and in the end, nearly a thousand highly discussed potential demands emerged. However, upon closer inspection, among these nearly a thousand requirements: -Many space enthusiasts -Many have no commercial value -Many are difficult to do and unnecessary to do -Many pure complaints are not considered as demands But it doesn't matter, because the hardest raw materials (popular posts+comments) are already available, the rest is filtering. And screening happens to be AI's strongest skill. Next, I will have AI do a business potential rating (0-100 points): -Potential market -Solution complexity -Market competition level -Cost, risk, and maintenance difficulty After comprehensive scoring, manually select the top 50 with the highest scores. This process is essentially an AI version of an automated factory for mining ideas. Low cost, fast speed, and all the requirements found are verified through discussions among netizens, rather than being blindly imagined. I don't know what will be refined in the end. If you find something special, I will share it with everyone.