1 💰 商业科技 TechCrunch 2026-06-22 💬 Ethan Thornton is trying to do everything all at once 19岁MIT辍学造武器，氢能原型失败后，这位硬核创业者如何快速试错调整方向？ Mach's approach differs sharply from some of its peers. mit辍学 武器制造 氢能源 创业故事 快速试错