The subway is not the norm, it's an outlier. Most engineering projects are not nearly as important or impactful. An apt comparison would be a fairly big interne

The subway is not the norm, it's an outlier. Most engineering projects are not nearly as important or impactful. An apt comparison would be a fairly big internet provider, a popular game (1M users, not just 10 thousands), a popular productivity suite… I have chosen the small end of the scale, but let's think about Microsoft Word for a second. Or how much time Adobe Photoshop takes to start up.