[mlc9852]

Same reason scientific theories continue to be argued about.

[jec41]

Same reason scientific theories continue to be argued about.

Yes, all theories should be tested. However most scientific arguments are either resolved or continued on empirical evidence and whats logically concluded from the evidence. Philosophy attempts to to prove by logical deduction beliefs and faith that are devoid of empirical evidence. Lacking empirical evidence proof is derive by presenting the strongest argument and the most logical deduction.