High School Why are Boltzmann Brains considered a problem for physics?

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SUMMARY

Boltzmann brains are a contentious topic in physics, often viewed as a philosophical dilemma rather than a scientific one. Prominent physicists such as Sean Carroll and Leonard Susskind have expressed concerns regarding the implications of Boltzmann brains, suggesting that they challenge established theories. The discussion highlights that while Boltzmann brains pose significant philosophical questions, they do not represent a fundamental problem within the realm of physics itself.

PREREQUISITES
  • Understanding of thermodynamic principles related to Boltzmann's entropy.
  • Familiarity with cosmological theories and the concept of the multiverse.
  • Knowledge of the philosophical implications of physical theories.
  • Basic grasp of statistical mechanics and its relevance to physical systems.
NEXT STEPS
  • Research the implications of Boltzmann's entropy in cosmology.
  • Explore Sean Carroll's theories on the multiverse and their relation to Boltzmann brains.
  • Investigate Leonard Susskind's contributions to the discussion on Boltzmann brains.
  • Study the philosophical debates surrounding the nature of consciousness and reality in physics.
USEFUL FOR

Physicists, philosophers of science, and students interested in the intersection of physics and philosophy, particularly those exploring the implications of cosmological theories.

TheQuestionGuy14
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When Boltzmann brains are mentioned in physics, they're often seen as a problem. An idea that is forbidden. Physicists like Sean Carroll actively tried to come up with new theories that avoid Boltzmann brains. Others like Leonard Susskind have also labled them as problems. Why is this, what's so wrong with them? Are physicists worried about the idea that we ourselves are Boltzmann brains?
 
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They are not a problem in physics. If they are a problem it is a problem for philosophy not science.

AM
 
I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...

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