Regrettable Decisions Against Gut Instincts

The speaker reflects on their experience at Optimizely and highlights the biggest lesson learned - consistently regretting decisions made against their gut instincts. They recall instances where they followed others' advice over their intuition, which led to poor outcomes. Despite some failures when they trusted their instinct, the decisions that linger as regrets are the ones where they went against their founder instinct. The speaker emphasizes the importance of staying true to their gut feeling, even in the face of opposing opinions, to avoid future regrets and take full accountability for the outcomes.