Did Aliens Visit Ancient Egypt?

If so, where are the darn documents declaring this? One would think they had the ability to write and leave high quality paper no? And why do we assume they were good in math? What if they were good in, I don't know, home economics? Why haven't they solved global warming since we all know they are, you know, still around? Did they give Al Gore all the evidence he needed to make that movie about footprints? Were/are aliens Jewish? Why did they focus on Hollywood? Can they see ghosts? 'Cuz I gotta tell ya, I think my house is haunted.

I digress.

Here's a teaser from Skeptical Inquire magazine investigating this story:

"A similar argument can be made about the claim that the pyramid could not have been built by the Egyptians because if you divide the height by half of the perimeter of the base, you get pi (3.14 . . .). If you check this claim against the actual numbers, you again find that this is true to an accuracy of one part in 1000. So while the Egyptians obviously picked the pyramids’ proportions so that the height was the radius of a circle whose circumference was equal to the circumference of the base of the pyramid, the accuracy was much poorer than we could achieve today. Can you really believe that the members of an advanced race would flunk freshman surveying?

The quality of the stone work can be used to come to the same conclusion. The furnished surfaces of the stone, where needed, were level to within about one fiftieth of an inch. For reference, this is about half the thickness of a dime. A skilled mason using the type of stone-cutting tools found in old Egyptian quarries could, with care, achieve this sort of accuracy. But a spaceman using a laser cutting tool (as has been imagined by some pyramid buffs) would do a couple of orders of magnitude better.

So the workmanship of the pyramid is of a quality that would be just within the reach of what we know the Egyptians of the period could do but is very poor for anyone who had access to modern technology. And if this is true, the only refuge left for the ancient-astronaut notion lies in the claim that the Egyptians simply couldn’t have moved all that stone and put it into place in the pyramid."