What is Delta Four?

Delta Four is a framework developed by Kunal Shah for predicting startup success. This framework assesses the efficiency of products or services, focusing on their ability to change from an inefficient to a more efficient state, which Shah argues should unlock wealth. The concept is based on the idea that any product or service improving its efficiency score by a delta of four or more results in irreversible behavior changes, making previous methods undesirable. This score determines a product or service that significantly enhances efficiency, making it essentially irreplaceable once users have experienced it. This framework draws on insights from physics, biology, and evolutionary biology, as well as Shah's reading and experiences as a startup founder. 1