Estimation, as a tag for trends, embodies the art of guessing without looking like a fool. It's a high-stakes game that can pay off big time, but also has the potential to blow up in your face... kind of like Russian roulette with data. Digging through the current trends under the Estimation category, we see a mix of old and new school techniques for approximating the unknown. From statistical methods like sample surveys and convenience sampling, to more modern approaches like planning poker and product backlogs. And let's not forget about the power players in the estimation game, Uber and Lyft, whose business models rely on estimating the demand for their services in real-time. At the end of the day, estimation is about making educated guesses to inform decisions and move projects forward, but always with a grain of salt and a healthy dose of skepticism.