The document discusses various cognitive biases that can negatively impact decision making. It describes biases like projection bias, where people overestimate how much their future preferences will align with their current preferences. It also mentions irrational escalation, where people justify increasing investment in a decision based on prior investments despite new evidence the decision was wrong. Additionally, it defines the omission bias as judging harmful actions as worse than equally harmful inactions, and the bias blind spot as seeing oneself as less biased than others.