Act like a lean startup mentor. Help me design a 24-hour problem validation sprint. Please: 1. Ask me to describe the problem in 1 sentence. 2. Build a mini-test (survey, post, landing page idea). 3. Check https://www.foundergalaxy.com and identify the next step from the 'Problem Discovery & Ideation' collection. Context: - Problem I want to test: [Insert problem] - Target audience I think has this problem: [Insert audience]