OK, I mixed up scientific laws and scientific principles. I based my thought experiment on scientific principles. I actually said laws, but I meant to say fundamental principles. As I have said, these principles are as certain as anything can be.jar2574 said:@ Brighteye
A thought experiment is based on logic.
You proposed a thought experiment, not a scientific one.
Logical certainties and scientific laws are not the same.
Your thought experiment's conculsion was based on scientific laws, not logical certainties.
The conclusion you drew to your thought experiment was not logically certain.
It is as logical as it is logical not to jump off a tall tower. I say that causality will make me splat rather unpleasantly when I hit the ground. Similarly I say that causality will govern my thought experiment. When thinking of things in the physical world we generally assume that physical laws apply to them. In fact, we always do unless specifically trying not to. When you think of your next cup of tea, do you imagine pouring cold water into a cold mug and having the water heat miraculously under pressure from your mind? If you do, do you sincerely believe that this will actually happen?jar2574 said:It's really that simple. Try to conflate and confuse scientific laws with logical certainties all you want. You're just being illogical, and the conclusions you derive in your thought experiment are therefore illogical. Claiming that scientific laws are "the best we can do in this world" is irrelevant. That does not make your thought experiment logical.
My experiment was entirely logical. If you want to question the assumptions, feel free. But as I have said in my last post, questioning causality means questioning all of it.
jar2574 said:If you had proposed a scientific experiment, I may have agreed with your hypothesis. I would never have claimed that it could be proven 100% under current scientific laws. Current science does not allow us to test your hypothesis, so it will remain a hypothesis and not a proven conclusion.
The idea that science and scientific laws won't change dramatically before we can test whether a man-made brain acts identically to an identical human brain is simply absurd, and does not deserve further comment. Even if laws do not change, your hypothesis will remain a hypothesis until it is tested.
Current science often does not allow us to test a thought experiment. That's why it's a thought experiment. The idea that we could ever make identical objects seems absurd, but that's not the objection we've been talking about. We've been talking about causality, and it is entirely logical for me to assume that it applies. Scientific laws may change, but as I have just said, it was a mistake of mine to call causality a scientific law. It's a principle.