Quote:
Originally Posted by Mel Asher
Sorry TracyCoxx, but you are borrowing concepts from one area of science and using them to postulate an idea in another.
The second law of thermodynamics ( for the benefit of readers who haven't come across it ) basically states that Heat Transfer through a physical medium always results in a loss of energy, however small, e.g. Work-in does not equal Work-out.
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Actually, for your benefit
, the 2nd law of thermo states that the entropy of an isolated system that is not in equilibrium will tend to increase over time. And in a closed or complete system, you will not lose energy. The change in work you're talking about is in the 1st law.
Quote:
Originally Posted by Mel Asher
Perhaps you would care to expand your ideas a little more ?
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Ok, what I'm trying to say is that every physical process is reversible. If you recorded a movie of marbles bouncing around, or roller coasters or acrobats, or pretty much anything, and you play it backwards, you will not find anything that violates the laws of physics. Like the example in an earlier post where I talked about an egg falling in reverse. It's all physically fine in reverse.
When watching the movie backwards, you may think there's a lot of odd coincidences happening, like ripples in water coincidentally converging right where a rock just happens to fly out of the water. That is the only odd thing about running physical processes backwards, and that's because of the 2nd law.
The reason entropy always increases as time moves forward isn't because of any mysterious property of time. It's because at the time of the big bang, the universe was in an incredibly organized state. It's entropy was at a minimum. So the only thing that could happen from then on is dynamics that increased entropy.
Now, as I said the chemical reactions in your brain that create memories obey the 2nd law as well. So memories created are the result of past events. The process in reverse may be physically possible as long as an incredible amount of conditions are perfect for each and every memory recorded, but it's astronomically improbable.