Listen to the Summary of Sam Kyle's Hell Yeah! or Hell No! And How to Tell the Difference in 20 minutes. Please note: This is a summary & not the original book. We make decisions with the brains we have, not the brains we might want to have. We aren't objective when we evaluate our wants, but we are when we evaluate our needs. We are biased towards placing undue emphasis on irrelevant information that supports what we want or overstating the value of less meaningful factors in the effort to prove we've made the right choice...