Sean Carroll wrote a very interesting article on Cosmology and the Boltzmann Brain.
Of course, every issue can have many different points of view. One old grandmother who is the expert of *daily* phenomena sees this Boltzmann monkey Brain issue with a very different view, from her “bathtub dirt-pattern model”.
When the body dirt was washed into the bath water, it does not settle on the bottom of the tub uniformly but with some stringy patterns with both closed (water not drain) and opened (water drained) situations. She thus made a “bathtub dirt-pattern model”.
a. The dirt distribution in the tub water is totally uniform (random or symmetric).
b. When two dirt particles collide, they stick together (an interaction).
c. When first two dirt particles collide, the *total* randomness is no more (symmetry-breaking).
d. This symmetry-breaking accelerates the further randomness-reduction (pattern [or order] forms).
She quickly formulates a “Randomness dynamics” —- when the members in a *totally* random system has an *interaction* (of any kind), it (the interaction) will spontaneously break the *totality* of that randomness, and some patterns (or orders) will be formed.
On the other hand, the “Act I of Hamlet” emergence from the Boltzmann monkey Brain is a result of totally random chance, not a result of the Randomness Dynamics. Thus, the “Act I of Hamlet” in the Boltzmann monkey universe is dead, without a life.
Sean Carroll wrote, “In other words, a universe with a cosmological constant is like a box of gas (the size of the horizon) which lasts forever with a fixed temperature. Which means there are random fluctuations. If we wait long enough, some region of the universe will fluctuate into absolutely any configuration of matter compatible with the local laws of physics. Atoms, viruses, people, dragons, what have you. … And, let’s admit it, the very idea of orderly configurations of matter spontaneously fluctuating out of chaos sounds a bit loopy, as critics have noted. But everything I’ve just said is based on physics we think we understand: quantum field theory, general relativity, and the cosmological constant. This is the real world, baby.”
Again, those atoms, viruses spontaneously fluctuating out of a box of chaotic gas in the manner of Boltzmann monkey Brain are also lifeless and meaningless for this old grandmother. That is, the Boltzmann monkey Brain cannot be a part of the reality. Yet, as long as there is an interaction of any kind among the members of that box, the patterns and orders will emergent, not by any random chance but by the randomness breaking.
But by all means, ΛCDM (“Λ” stands for the cosmological constant and “CDM” for Cold Dark Matter) is wrong.
The original comment is posted at http://www.preposterousuniverse.com/blog/2013/08/22/the-higgs-boson-vs-boltzmann-brains/#comment-7295910552604268340