Yeah I think biology is a really good analogy. Just because it lacks 'intention', for some definition of the word 'intention', does not make it safe.

"That virus is nothing but a microscopic encapsulated sequence of RNA."

"Moltbook is nothing but a bunch of hallucinating agents, hooked up to actuators, finding ways to communicate with each other in secret."

https://xcancel.com/suppvalen/status/2017241420554277251#m

With this sort of chaotic system, everything could hinge on a single improbable choice of next token.