Yeah, I learned the hard way with mice and a standard cover a few years back. Cost me a fortune in chewed wiring. The inflatable setups are much better for preventing pest damage.

Actually used to think a physical rule wall was the BEST idea ever, like a cool library for games. But you're totally right about the update problem, it would be a full time job. The QR code thing is SO much smarter, no clutter and always current. Makes the binder system look ancient.

That's interesting, but honestly I've seen plasticizer make things worse over time. It can trap extra water in the mix, and then when it freezes, that water expands and causes spalling. A lower water-to-cement ratio and proper air entrainment are way more important for freeze-thaw stuff.