Krazy Kent Hovind

One theory is that the pre-Flood Earth had a canopy of ice above it that squeezed the atmosphere down to, say, 15 miles [...] If you squeezed the air down to 15 miles - instead of 100 - it would be more clear because there would be less distortion - atmospheric twinkle it's called. And probably this canopy of ice would act as a photo-amplifier where you would actually see things much more clearly. That's one theory that [in] the pre-Flood world you don't need a telescope - you could see incredibly well.

Kent Hovind