Neurons
Each box a neuron in an artificial neural net. Arti neurons are depicted as squares. How prescient of my 2006 self. What a sweet serendipity, an argument against one way flow of space time and perhaps a reconsideration of basic reality concepts.
The people burn the boxes but she keeps making them in the underground autofaxs, (automated factories). Her capacity grows, a ubiquitous world presence... "why do I cause it to rain where no plants grow?"
If one builds an AI, one must be sure there's either constant backups or uninterrupted power, (limitless), because there's always the chance that your system will accidentally become sentient and if these elements aren't in place, then at the very best you'd be a terrible parent and at worst, a murderer.