Notice the difference between Troy McLachlan’s concept of what the Saturn crescent amounted to and the Thunderbolts group’s concept. At this point, I’d bet the farm that Troy is correct.
However, the rings of Saturn are without doubt in my mind a late creation of the catastrophe that destroyed the Saturnian system. One reason I think so is that ice, which makes up the rings, doesn’t last long in a vacuum as it sublimates directly to a gas under low temperatures and, especially low pressure. You can’t get a much lower pressure than the vacuum around Saturn’s rings. You can actually see examples of sublimation in your own home refrigerator’s freezer section in the ice tray as the ice slowly disappears if you don’t use it right away. Over months, and years, the ice cubes shrink with sublimation even though the temperatures don’t rise above freezing.
I think the crescent is the reflection of the on coming Sol, stealing the electrical power from Saturn, and the appearance movement of the crescent (the celestial boat) around the orb of Saturn is proof of this. There could not have yet been a shadow on the rings from Sol, until after Sol had captured Earth and Saturn was receding and the rings had formed from the remnants of the atmospheric plasma cloud that had surrounded the system. His logic to explain that portion of the Egyptian crown is exceedingly good, but is explicable only AFTER Sol has entered the picture as Saturn is receding to its now distant position.