Anecdotal Evidence

[robvalue]

By the way, trying to include the qualifier "true" in regard to knowledge is redundant. We don't have access to "truth". We model reality. The only time truth appears is within abstract systems. We're trying to get close to what is true. But we can never know if we've actually achieved it or not.

One possible definition I came up with is "information that has practical application". That might not be foolproof, but I think it's a reasonable rule of thumb.

When people apparently "know" something, and haven't used a scientific method to reach the conclusion, invariably the "knowledge" is useless. So without a specific example here, I have no idea what your point is at all.