If you want to take a comb to it, the comment saying this:
> Except your ceiling can and will fall on you unless you take preventative measures, entirely due to molecular interactions within the material
Was already off the plot. What was being discussed wasn't some specific molecular process, it was the false premise "oh molecules move around randomly so your ceiling might just collapse of its own accord because the beam decided to randomly disintegrate". That's not something that happens.
You said "The sequence of tokens that would destroy your production environment can be produced by your agent, no matter how much prompting you use". This is analogous to "the ceiling could just collapse on you due to random molecular motion, no matter how much maintenance you do or what materials you use".
Make sense now?
Your edit at the bottom of your top comment does better than your original statement.