It’s Not a Promise, It’s a Guess → “If you treat the estimate as a “best guess based on the limited information available to me before I start the work”, though, you’ll change the frame and break the cycle of deadline anguish.”
No, everything is not going to be okay → “Finding the bravery to shun faux reassurance is a critical step in producing important change. Once you free yourself from the need for perfect acceptance, it’s a lot easier to launch work that matters.”