The universe appears "old", but it is still less than 10,000 years old

[orogenicman]

Separating the detectors will re-introduce the simultaneity problem. The fact that simultaneity has been previously determined via the oscilloscope becomes irrelevant

You seem to be of the belief that it cannot be accounted for and thus taken into consideration when conducting such an experiment. I take the position that we have been conducting scientific experiments for hundreds of years and are pretty good at taking into consideration such things as instrument error, simultaneity, and the like. Why is it, in your opinion, impossible to measure any differences in the set up at 1,000 feet as opposed to any other distance, or no distance? Why, in your opinion, is a calibration method irrelevant? We know the speed at which electrons move through wires. We have two wires of known length, and detectors with known properties separated by 1,000 feet. If firing a laser beam across those detectors produces the same result regardless of direction, how is that not a significant result? You haven't re-introduced a synchronous issue to the experiment because you are taking all measurements are the same location. You only have one clock. You have accounted for the distances by measuring any error that introduces.