This is an interesting point of fact about what Boltzmann Brains could be.
Boltzmann brains are likely to be wrong about all of their beliefs owning to them being created by an endless sequence of random dice rolls that eventually makes atoms that can think, so it's fine if they are silicon chips that think they're wet organic bodies (amongst other things).
A computer with say 2^((175e9)*8) parameters is simpler than a human brain, so more likely to be produced by this process.
But the 500 line file is a red herring.
Poetically, an intelligent universe seems closer to reality thanks to this new observation.
Not requiring a world around the brain does not make it more likely, but less, as the probability of brains given that worlds exist multiplied by the probability of worlds is still much higher than the probability of brains regardless of the existence of worlds
> The Boltzmann brain gained new relevance around 2002, when some cosmologists started to become concerned that, in many theories about the universe, human brains are vastly more likely to arise from random fluctuations; this leads to the conclusion that, statistically, humans are likely to be wrong about their memories of the past and in fact be Boltzmann brains. When applied to more recent theories about the multiverse, Boltzmann brain arguments are part of the unsolved measure problem of cosmology.