Overconfidence Share definition Flag A slow and insidious killer. Success may be clearly in view, but it may very well be a trick of the light. The Ancestor: Remind yourself that overconfidence is a slow and insidious killer. Overconfidence by RedmondAlizarin January 7, 2024 0 0 Get merch Get the Overconfidence mug. Buy Now — $32.95 See more merch