To-do

A to-do list is like a sun. When enough stuff collects in one place, it can spark to life, and produce energy, and fuel interesting processes. But above a certain size and beyond a certain age, its own weight turns against it. More stuff goes in than gets out. Eventually it collapses on itself, withdraws beyond its own event horizon, and becomes irrelevant, and nothing can escape from it save in the occasional random quantum event.