This document discusses contracts and collaboration, beginning with definitions of the terms from ancient Rome. It then covers prisoner's dilemmas and trust-building concepts like transparency, respect, and flexibility. Different contract types are assessed, from fixed-price to scrum-based iterative approaches. The document advocates for a partnership-focused contract with bidirectional trust, transparency, and a review/acceptance process. It concludes by asking the reader to self-assess their current contract and consider experiments like pay-for-success or crisis management approaches.