1. The Copenhagen school is quantum mechanics. Representative figures are Bohr and Dirac, Heisenberg and Pauli. They believe that observability is the foundation and basis of establishing theory, and the subjective component of human beings can not be ruled out logically, so quantum theory is the combination of subjective and objective elements. Quantum transition is the most basic concept of quantum physics, and the movement of microscopic particles is discontinuous, which makes it impossible to measure two interrelated variables according to the uncertainty principle and accurately measure them at the same time. The wave function describing microscopic particles is a kind of probability wave (mainly explained by German scientist Born), but the causal law and determinism established in the macro field are not established in the micro field. The microscopic phenomena observed in the experiment can only be described by the usual classical language, and the wave-particle duality paradox of microscopic particles is the result of the classical language description, so the microscopic phenomena described by the classical language are complementary and mutually exclusive.

2. Gravitational redshift is evidence of space-time bending.

In Einstein's theory, the speed of light cannot be surpassed. Now physicists are looking for magnetic monopoles to verify whether the rest mass of photons is zero, whether God particles exist and so on. Can clearly give the answer whether the speed of light can be surpassed. Unfortunately, there is no definitive result yet.

3, explain the source code, I really don't understand, I haven't heard of it.

This is a passage from the Diamond Sutra. All we are talking about is everything. What we can see and touch, like what we can't see and touch, is like a bubble in a dream, as short as a dream and electricity, and it passes in a blink of an eye. We should look at all this in this way. What is hopefully emphasized here is a condition and a premise. Next is the final result under this premise. It actually illustrates a very important point in Buddhism.

PS: I don't know what you do. Your questions are so extensive and profound.