I found this on another thread:
If you wish to verify your predictions, fell free. Travel to Makokou on the day of your test and you can verify your prediction for us.
Tom does a fairly reasonable job in the first page of that thread laying out what is acceptable evidence
You think so, but....suppose I come on here the day of the equinox and say “I’m in Makokou, the test is conclusive, Round Earth for the win!” Do you really expect anybody, round or flat, to simply accept that? I don’t. Any more than I accept the results of the Bishop Experiment just because Bishop says he performed it and he says the results mean what he thinks they mean.
We will be responsible for verifying our own predictions, and you will be responsible for verifying yours. Does that sound fair?
To someone unfamiliar with how science is actually done, I suppose that SOUNDS fair. But in the real world, when proponents of Theory X make a prediction and claim to have experimental proof, their experiment must be repeated, their results duplicated, and their conclusions verified by
opponents of Theory X before it ‘counts’ for anything. The example at hand,
Tom requesting proof that everywhere in the world actually has a twelve hour day on the equinox: in my 40+ years I have personally been in many different cities around the world on an Equinox Day. Multiple US cities at latitudes northern and southern, even a few overseas locations (one in Australia, two in Asia, and several out at sea aboard a US Navy ship). Each time, local news has a story about the twelve hour day, and it never failed to be a twelve hour day. My personal testimony to this is of no value with Tom, and nor should it be. After all, I would not believe him, if he claimed to have experienced thirteen hours of sun on Equinox Day somewhere, so why should he accept my story? However, what SHOULD be of value is the fact that THE WHOLE WORLD has the same experience of local media announcing a twelve hour day, relevant museums and observatories holding events around it, and nobody ever reporting that the twelve hour day failed to occur. Ever.