Fumble_ Brewski
Sabine Hossenfelder
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Comments by "Fumble_ Brewski" (@fumble_brewski5410) on "I don't believe the 2nd law of thermodynamics. (The most uplifting video I'll ever make.)" video.
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O, ye of little faith. Actually, the second law of thermodynamics states that the entropy (the measure of how dispersed and random the energy and mass of a system are distributed) of isolated systems left to spontaneous evolution cannot decrease, as they always arrive at a state of thermodynamic equilibrium where the entropy is highest at the given internal energy. The law also states that the changes in the entropy in the universe can never be negative, and that the state of entropy of the entire universe, as an isolated system, will always increase over time. This principle explains why you can't unscramble an egg and why processes that involve the transfer or conversion of heat energy are irreversible and always move towards more disorder. The second law can be expressed in terms of entropy, and if a reversible process occurs, there is no net change in entropy. And, yes, this concept, if followed to its logical conclusion, can be a bit depressing. However, there is hope in this truth: "For behold, I create new heavens and a new earth; and the former shall not be remembered or come to mind." (Isaiah 65:17); as well as: "Now I saw a new heaven and a new earth, for the first heaven and the first earth had passed away..." (Revelation 21:1) We can be thankful that our loving Creator has left us with wonderful promise of His faithfulness, lest we become discouraged. Cheers!
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