Zeteticism is observation and nothing else (as sillyrob, etc have already said):
1. The moment you start reasoning it is no-longer zeteticism, because you are formulating a hypothosis.
2. The moment you start experimenting it is no-longer zeteticism, because you are testing a hypothosis.
Incorrect, you can gather data. This takes the place of experimentation and removes any bias introduced by the sm.
Tom has reasoned (hypothesised) that the earth is accelerating upwards. I think this is wrong because:
1. Acceleration is a vector quantity - It could be Tom or the earth doing the accelerating.
2. He has used the fact that graviton have not been observed in his reasoning. This is irrelevant.
2. Hypothetically, gravity may be discovered by Tom later on. There are other observable forces of attraction that cannot be easily explained (electromagnetism), so we cannot rule out another.
Perhaps, but all we can say is that either Tom accelerates downwards for an unknown reason or that the Earth accelerates upwards. In the end, that is where zeteticism ends until one spends the proper time to gather more evidence. There is the supposed fact that this phenomenae occurs. A zeteticist should not worry about which is true nor should he go around inventing wild explanations on why this is true no more than a greek shepherd should speculate that a god's chariot carries the sun across the heavens. It may, to the fanciful youth, be more enjoyable and fun to imagine the universe is bending around itself to cause this to happen or that some invisible undetectable particles are the cause, but its not a theory that can said to have any validation in regards to truth beyond its appeal to curiosity. Once we can gather data on these supposedly undetectable particles or gather it on whatever causes the universe to bend around itself - then we can sit back and say with a small amount of certainty that we are moving in the correct direction. To do otherwise would be to simply inflate ones own ego and quench the thirst man has to imagine explanations out of nowhere. The road science takes leads the unwary scientist inevitably two steps forward and three back.
However, that said, by viewing this data on the whole we see the Earth cannot be round. That was the point of Rowbothams experiments, not to formulate a theory on Earth. He was already content in his biblical explanation.
Many so called "scientists" are actually in reality zeteticists. I have mentioned a few in the past but it seems the globularist community here wants to dismiss them out of hand simply because they fail to recognize the method they are following.