>Again, you and the original poster seem to have this understanding that scientists and engineers from the mid 1800s to early 1900s are not to be trusted.
No, once again that's not what was said. The concept being communicated is that the scientific method works over long periods of time, not short ones. Over long periods of time, such as 200 years, the work that survives peer review and remains significant today are things like Maxwell's work on electromagnetism as opposed to Dr. Franz Mesmer's work on animal magnetism.
You are taking little bits and pieces of what people are saying, misconstruing them and reinterpreting them, and then forming an argument that is not a genuine representation of the original comment.