Is their an equation in physics that proves the immortality of human thought?
No equation in Physics could ever prove anything. Especially anything as vague as “the immortality of human thought”. Equations can be useful models of the real world, and the form of the equation may suggest other things. There are equations that are very, very good models for what happens in nature. For instance, the very complex equations of QED give answers that match reality down to like the 9th decimal place. But we’re matching something very concrete, like the repulsive force between two electrons. Also the form of the equation may suggest other things. For instance, any equation that has a square term in it suggests that there might be a second solution, where you plug in -x instead of x. You see when you square x or minus x you get the same answer. As one earth-shaking example, the fella that came up with the equation for the electron posited that you could plug in an electron with opposite charge and get the same result– which if you have a lot of guymption would lead you to