This document discusses strategies for scaling startups in a sustainable way. It argues that "hockey stick" growth fueled by venture capital is not the only path and can lead companies to scale too quickly before establishing market credibility. Instead, it proposes an "effectual" and "momentum scaling" approach of growing in waves, establishing market influence and ability to execute at each stage. The framework focuses on maximizing execution while managing uncertainty through rapid testing, adapting to opportunities and prioritizing revenue and profits over high valuation.