Photo by Brett Jordan on Unsplash Dear Readers, Thank you for coming here! Made another mistake… Last time I made such a mistake, it cost me the promotion. I thought I learned. I was wrong. I over-estimated myself. I clearly took the easy way out and committed a logical flaw. More sanity check may have captured it. Clearly, I did not think it was necessary. Seeing the huge numbers did not alarm me enough either. I did not really check with people either and even pushed people away to avoid more work. This is all wrong. Even if there was no mistake, what I did is still dangerous. Photo by Sangga Rima Roman Selia on Unsplash Maybe I could have handled the after-math better. For example, I could insist that those were the assumptions made previously. I could combine the impact with the next round of refinement so that it...