My point was that it is actually impossible for a person to come to an untrue conclusion through the use of logic, UNLESS there is a fault with the -persons- reasoning. It is not logic itself at fault, as Logic itself can not be either true or false. The premises used to reach a conclusion can be erroneous, and the conclusion can be a non-sequitur, but the process by which one forms those premises, and forms that conclusion is not at fault.
Maybe if I rephrase it. You cannot conclude that -this- cow, is -this- bucket. Because they are two objects separate and mutually exclusive. An object is what it is and is not what it is not, and logic cannot be used to demonstrate that absolute false.
The Problem is, Sowelu, that you don't actually know what you're talking about. I'm sorry, but when you make statements of skepticism over the existence of black holes, that you can use logic to prove anything, it tells me that you simply haven't done your homework in this particular regard. Scientists aren't sitting in a hut flinging darts at a board to determine how they feel about particular things, they research, they study, they treat everything they think of with harsh skepticism, and are more than willing to toss out old ways of thinking in favor for more correct ways of thinking.
Isaac Newton was not wrong. He was correct as far as he was capable of being correct. Newtonian physics is still useful for things that don't need to be extreme precision. There are fundamental, absolute definitions for the forces that govern the universe, but we cannot see them. All we can see of it is through a fractured mirror. Isaac Newton and Einstein could only see parts of the truth, but they were both describing the same truth.