When starting a business, it's crucial to identify the missing piece that hinders progress.Conventional startup advice may not always address the specific bottlenecks.Developing a mental model based on first principles can provide clarity in evaluating business ideas.The Gradient Score tool assesses the gravitational pull of a business idea.Key metrics in the Gradient Score include receptiveness, solution fit, self-help risk, spending power, and founder resonance.A high Gradient Score indicates alignment with market demand and founder's strengths.A low Gradient Score signifies potential obstacles like lack of market pain or misalignment.The tool benefits founders, creators, investors, strategists, and those launching side projects.It helps in validating ideas, refining positioning, crafting fundraising narratives, and assessing internal initiatives.The goal is to build ideas with inherent pull and minimize resistance for business growth.