I'd say it's more an unfortunate consequence of confusing industry terminology. Sub-nanometer refers to the process, not the finished size of the chip. Smaller processes can fit more transistors in the same space.
I'm a software engineer at a large company you may not have heard of, but you almost certainly know at least one of their brands. Abstraction layers are all over the place; they're not a symptom of open-source software, they're a symptom of lots of modern software.
My burn-the-house-down take on this: very slowly flip each switch on and listen for arcing. Works fine assuming the other two switches aren't connected to anything.
It comes off as a very silly question and people probably think you're trolling. The shirt doesn't belong to anyone but you 🙂