[orwin]

People who don't have a theory are skeptics. People who do are not. And you can challenge any narrative you want, especially when no consensus exists. A lot of archeologists though bow drill was a reasonable explanation about some stonework, but as none were found (yet), none of them wrote about it. It is still talked about as interesting research subject. Another interesting subject is the usage of acidic mixtures in Inca stoneworks (to help grind stones). You won't see any layman article on it, but it is heavily discussed (just go on Reddit).