I have always thought the Sphinx was a yarddang. Probably everybody who thought about it at all thought so. Who is this Farouk al Baz? BTW, the Sphinx originally had a lion head and you can see where they chopped it away to make the ludicrously undersized human head, which was after the Great Pyramid had already reduced the normal rainfall to almost zero.
I have always thought the Sphinx was a yarddang. Probably everybody who thought about it at all thought so.I've thought about it, and it doesn't make sense, because the Sphinx was literally mined out of what is now the enclosure around the Sphinx. As Robert Schoch has said, it's possible that the head of the Sphinx began as a yardang (though now it's impossible to tell), but the body of the Sphinx could not have been.