Not far fetched in the least, Robert, and I'm glad you posted your comment. Thank you for pointing me to your work. If the world appeared vastly different than it does today, what we see now is that world in a devastated condition as a result of water damage. My contention is that however or what created what I'm seeing in the canyon as not exactly natural, appears to be simply because they were constructed with earthly materials that lifeforms can exist and thrive upon. The stepped pyramids above sea level and the underwater pyramids that lack sediment surrounding them, or pyramids that are still intact as remaining buried, do not have the same time elapsed conditions of erosion as does the Grand Canyon. Over time the ancient seas eventually receded to the point the waters slowly removed the soft earth built up around the pyramids as tributaries from the apex of each "butte", and over the course of more time, they further deteriorated from the elements. The Colorado river cuts a path, but never did form the stand alone, or island-like, features.
I've been invited to visit a pyramid in Ecuador that has not been public to which the architecture indicates that whatever used or occupied them were not our height, but much taller and wider. Rather interesting what else has been noted. You can hear an initial conversation I had with a good friend when I first learned of this one here