Hieroglyphs are actually not that simple, my ex gf was an Egyptologist, I went to quite a few lectures with her, that was a highly complex language, more akin to Japanese Kanji, with deep layered subtexts. Those desert dudes were crazy. If you have ever have a chance to visit a lecture about hieroglyphs, do it, it’ll blow your mind. Or how they calculated time, or even saw it, culturally and individually, wow. They were so unbelievably far ahead, I sometimes compare them to the octopus of human development, they should rule the world, but there was that one thing, that prevented it. (For the analogy: the octopus dies when their kids are hatching, would they have the ability to pass their knowledge along to them, today eight armed space suits would be en Vogue)