Imagine a water wheel. The direction the river flows in controls the direction that the wheel turns. The amount of water in the wheel doesn’t change.
In this case you do not say “the wheel rotates in the direction of water increase”, but “the wheel rotates in the direction of water flow”.
I can see how you could argue that “the consciousness perceives past and future according to the direction of time in which it radiated heath”. But, if you mean that heath flow (or some other entropic-related phenomenon) is the explaination for our time perception (just like the water flow explains the wheel, or the DC tension explains the current in a circuit), this seems to me a bold and extraordinary claim, that would need a lot more evidence, both theoretical and experimental.
This is technically true of the universe as a whole. Suppose you take a quantum hard drive filled with 0′s, and fill it with bits in an equal superposition of 0 and 1 by applying a Hadamard gate. You can take those bits and apply the gate again to get the 0′s back. Entropy has not yet increased. Now print those bits. The universe branches into 2^bit count quantum branches. The entropy of the whole structure hasn’t increased, but the entropy of a typical individual branch is higher than that of the whole structure.
Yes, whenever you pinch a density matrix, its entropy increases. It depends on your philosophical stance on measurement and decoherence whether the superposition could be retrieved.
In general, I am more on the skeptical side about the links between abstract information and thermodynamics (see for instance https://arxiv.org/abs/1905.11057). It is my job, so I can not be entirely skeptic. But there is a lot of work to do before we can claim to have derived thermodynamics from quantum principles (at the state of the art, there is not even a consensus among the experts about what the appropriate definitions of work and heath should be for a quantum system).
Anyway, does the brain actually check whether it can uncompute something? How is this related with the direction in which we perceive the past? The future can (in principle) be computed, and the past can not be uncomputed; yet we know about the past and not about the future: is this that obvious?
[...] The universe as a whole behaves kind of like a reversible circuit.
This is another strong statement. Maybe in the XVIII century you would have said that the universe is a giant clock (mechanical philosophy), and in the XIX century you would have said that the brain is basically a big telephone switchboard.
I am not saying that it is wrong. Every new technology can provide useful insights about nature. But I think we should beware not to take these analogies too far.
In this case you do not say “the wheel rotates in the direction of water increase”, but “the wheel rotates in the direction of water flow”.
I can see how you could argue that “the consciousness perceives past and future according to the direction of time in which it radiated heath”. But, if you mean that heath flow (or some other entropic-related phenomenon) is the explaination for our time perception (just like the water flow explains the wheel, or the DC tension explains the current in a circuit), this seems to me a bold and extraordinary claim, that would need a lot more evidence, both theoretical and experimental.
Yes, whenever you pinch a density matrix, its entropy increases. It depends on your philosophical stance on measurement and decoherence whether the superposition could be retrieved.
In general, I am more on the skeptical side about the links between abstract information and thermodynamics (see for instance https://arxiv.org/abs/1905.11057). It is my job, so I can not be entirely skeptic. But there is a lot of work to do before we can claim to have derived thermodynamics from quantum principles (at the state of the art, there is not even a consensus among the experts about what the appropriate definitions of work and heath should be for a quantum system).
Anyway, does the brain actually check whether it can uncompute something? How is this related with the direction in which we perceive the past? The future can (in principle) be computed, and the past can not be uncomputed; yet we know about the past and not about the future: is this that obvious?
This is another strong statement. Maybe in the XVIII century you would have said that the universe is a giant clock (mechanical philosophy), and in the XIX century you would have said that the brain is basically a big telephone switchboard.
I am not saying that it is wrong. Every new technology can provide useful insights about nature. But I think we should beware not to take these analogies too far.