Rationally proving rationality

[reverendjeremiah]

You might as well say how can we KNOW anything?

More like "How can we know that what we know is fact?"

Rational thought is simply a tag we put on the type of thinking that considers facts, evidence and reason. It is clearly the most objective way to think, rather than basing everything on unevidenced belief.

I agree it is the best choice, and I dont think he is trying to suggest that. What he is asking is how can we 100% be certain that it is factual.

Put it another way, if we can define the parameters of what "rational" is and devise a thought experiment and ask a group of people to rationally think about a conceptual question and give a probable answer to that question, then you might expect more than a random percentage to come up with a similar answer - if this test was repeatable with predictably similar results then you could say that you were thus proving the validity and dependability of critical or rational thinking.

Good point.