Does garbage in/out really apply to LLMs though? The relationship between input and output is unknown in large LLMs as far as I know . If that’s the case, then you can’t make any claim about “output” relating to “input” when it comes to LLM AI.
Even a hyper-rational mind with infinite computation capacity will draw the wrong conclusions if it is fed incorrect observations. LLMs aren't magic, they're pattern-matching engines. Even if the relationship between input and output is opaque, that doesn't mean they're omniscient.