Rockit Summit, Justin Varilek - The Lean Startup: Destroy your dream, accept that you know nothing

The document outlines the story of how HackPack became lean by sharing lessons learned over time. It started in February 2014 by being apprehensive and checking the market before engaging potential clients immediately in July/August 2014 by assuming they knew nothing and getting visual. Programmers and users were brought together in December 2015/July 2015 and the process was kept simple in November 2015 by rejecting perfection, checking in with users often, and checking statistics. The document promotes being a realistic, hopeless romantic and engaging with potential clients and users throughout the process.