Your 3rd guess is true: Or, perhaps no one has made an error, and all the calculations were done correctly, and the reason we’re not getting the same answer is because we’ve made an incorrect assumption about the Universe: that we’ve gotten the laws of physics correct, for example.
According to the New Physics of Unity, light exists in nature in the form of four arcs of light.
Experiments measure the distribution of the four arcs at the same time, and the results are mixed and a common response is sought that does not exist.
With closer examination of the results, you can separate the four different arcs of light that in nature are obtained from each other.
From the first arc, the second arc is obtained, which is reciprocal to the first, but the two arcs have different beginnings of different value.
The third and fourth arcs are reciprocal on the first and second arcs.
The second and third arcs have one start with one value and are reciprocal to each other. The first and fourth arcs have one start with one value and are reciprocal to each other.