Startup culture you describe is more entrepreneurship than high-tech. Business idea and execution makes the difference, not several years of technological edge

Startup culture you describe is more entrepreneurship than high-tech. Business idea and execution makes the difference, not several years of technological edge over competition. Biotech, medicine, electronics, wireless technology, signal processing, chemistry and material science startups work in different environment. Get good education (PhD is requirement in many areas), work in a firm or research group until you are at top of the game and have learned all practical skills, then start a business.