This document discusses startup failure and strategies for "unfailing" or overcoming failure. It provides perspectives on failure from successful individuals like Michael Jordan and Denis Waitley. It then profiles the author, Sergey Sundukovskiy and his experience helping startups. The document outlines different types of failure startups may face and reasons why failure is so common. It proposes strategies for unfailing like having a strong founding team, focusing on the most important things, and changing strategy at the right time based on clear metrics. Continuous testing, pivoting as needed, and focusing on execution are presented as keys to transforming failure into success in building a startup.