Dear Coffee,
I ask for your help.
I need to pass this exam, and at the same time a client is angry.
I invoke you.
Like the function I'm in.
A function of time, a function that will probably never halt but you cannot prove it. You hope it will stop soon, but deep inside you know it will continue to compute.
I beg you, Coffee. Make this function of procrastination stop. Please.
I see no escape.
It is a tail-recursive function. You realize it as soon as you reach the end.
You can do nothing about it, you're trapped inside this loop. At each iteration you hope to reach the bottom, but you never know. You can only hope that the bottom is close.
This is the last one, you keep repeating to yourself.
Please Coffee, let it be a non-pure function.
Make the environment change.
Only then we can be saved.