Ahhh, well. I was referring to dating using conventional methods. You know, the entire Giza complex, including the sfinx are described rather thourougly in historical accounts. And there are numerous other indications of their age.
In contrast, the theories you refer to, are based on single parameters. Interesting theories, perhaps, but marginal. They do raise a number of questions, also.
Like, who built them, since Egypt didnt exist at that time?
Like, if the Giza complex is nearly five times older than the oldes Egyption monument, why is so well-preserved?
Hans