Reserve: Necessary, complex, soul-sucking. For the crews who sit waiting around, reserve is akin to walking into the ocean with many papercuts. Imagine, not knowing what you’re doing for the day until the last possible (legal) second.
You could be called anytime: day, night, 2am, just as you’re about to attempt to sleep (let’s be real, you’re going to wake up every 2 hours convinced you’ve slept through a call). Sure, you have a so called “relative position” to see your probability of getting a call, but relative to what? The whims of a vengeful and nonsensical god of flight? That’s what it feels like; you just want to know if you can change out of your pajamas and see the sun, cause it’s been days.