This document summarizes a presentation given by Peter Cockcroft at a Technical Symposium in Bogor, Indonesia on August 7-8, 2019. The presentation discusses using multiple hypotheses as a risk mitigation strategy. It provides examples of how multiple diagnoses from different hospitals helped correctly diagnose and treat the speaker's cancer. The document also questions why oil and gas companies and regulators do not make greater use of multiple hypotheses in areas like exploration, geology, and reservoir evaluation to reduce bias and miss risks. It advocates applying different evaluation methods for carbonates and fresh water formations in Indonesia. The presentation closes by quoting John F. Kennedy on the risks of comfortable inaction.