[null and void]

Since the telescope was invented in Middleburg Nederland some time in the 1400s, we know the ancients did not, in fact, have telescopes.

Nonsense. We know no such thing.

How much of our technology would survive an Ice Age and/or a full scale war with our wonderful nuclear, biological and chemical weapons?

If our distant descendant remnants figured out the wheel, would you spiritual descendant deny any wheel prior art?

On the other hand, your belief in the total uniformity of human visual acuity is highly disturbing. There is and has been substantial variation.

I hold no such belief. Even in the highly unlikely (Given the angular resolution required and the maximum density of rods and cones) event that one in a million could see that Saturn doesn't look round, who would believe him when he says that the perfect celestial spheres aren't?

I also note that you side stepped the issue of the preflood water sphere above the earth. Chicken...

[muawiyah]

The Antedeluvian "water sphere" is an extra-Biblical manmade conclusion drawn from a misapprehension of the translation of a translation of a translation of an ancient Sumerian cognate language regarding where rain comes from.

Knowing that why should I discuss it ~ it's totally bogus.

[muawiyah]

BTW, there are people who have more than the average number of cones, with double the quantity in RED.

They have much better visual accuity than the average person.