I am not sure I want it to be this, but back when I worked on software for airports, there was a concept of a Target Startup Approval Time (TSAT). This is the m

I am not sure I want it to be this, but back when I worked on software for airports, there was a concept of a Target Startup Approval Time (TSAT). This is the moment an aircraft is expected to power up in preparation to roll back and taxi to the runway before taking off. I worked with some clever statisticians who were focused on optimizing this exact moment. That calculation has hopefully contributed to reducing more pollution than anything else I could conceivably do in my lifetime. That's incredibly boring though, and I work in sport now. The most _emotionally_ impactful achievement is the first soccer player signed based on my statistical models. He helped win his club their first title in a decade, got his first international callup, and won his country their continental cup (he also made his club a lot of profit when they sold him and my sell-on percentage never materialised).