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The Boltzmann brain thought experiment suggests that it might be more likely for a brain to spontaneously form in space, complete with a memory of having existed in our universe, rather than for the entire universe to come about in the manner cosmologists think it actually did.
In this toy multiverse, the left-hand region exits inflation (red line) later than the right-hand region. With the proper-time cutoff shown by the black dotted lines, the immediately post-inflation portion of the left-hand universe dominates the measure, flooding the measure with five "Boltzmann babies" (red) that are freakishly young.
Ludwig Boltzmann was an Austrian physicist famous for his founding contributions in the fields of statistical mechanics and statistical thermodynamics. Boltzmann may also refer to: 24712 Boltzmann, a main-belt asteroid; the Boltzmann brain, a thought experiment; Boltzmann constant; Boltzmann (crater), an old lunar crater; Boltzmann distribution
Diagram of a restricted Boltzmann machine with three visible units and four hidden units (no bias units) A restricted Boltzmann machine (RBM) (also called a restricted Sherrington–Kirkpatrick model with external field or restricted stochastic Ising–Lenz–Little model) is a generative stochastic artificial neural network that can learn a probability distribution over its set of inputs.
Boltzmann was born in Erdberg, a suburb of Vienna into a Catholic family. His father, Ludwig Georg Boltzmann, was a revenue official. His grandfather, who had moved to Vienna from Berlin, was a clock manufacturer, and Boltzmann's mother, Katharina Pauernfeind, was originally from Salzburg.
Despite the foregoing, there is a difference between the two quantities. The information entropy Η can be calculated for any probability distribution (if the "message" is taken to be that the event i which had probability p i occurred, out of the space of the events possible), while the thermodynamic entropy S refers to thermodynamic probabilities p i specifically.
Brain rot is what happens when it’s no longer a joke. “Don’t you dare gatekeep you pick me , I do a GRWM for my OOTD, but I don’t have the proper ring light,” she said in one video .
The assumption of molecular chaos is the key ingredient that allows proceeding from the BBGKY hierarchy to Boltzmann's equation, by reducing the 2-particle distribution function showing up in the collision term to a product of 1-particle distributions.