One of the nice things about geology is you can see it. Your first or second interpretation may need to be modified after further investigation, but concrete, tangible reality exists, and we can return to it repeatedly for more information. In geology, opinions frequently can be corrected by facts, facts that can be verified or falsified by direct observation. This high regard for concrete, tangible reality–stuff you can see and touch–is central in our Talking Rocks Tours.
The picture is of Basin and Range country in central Nevada.