The conventional timelines of dynastic Egypt and Mesopotamia are impossible. Believing in them means endorsing the idea the Hyksos were time-travelers, and that the Egyptians were technologically a thousand years behind their major trading partners in Mesopotamia during the Middle Kingdom era. It also is not what the ancient Egyptians actually recorded, so believing it means believing that modern Egyptologists know more about ancient Egypt than the ancient Egyptians themselves. Given that the ancient Egyptians lived through it, and all Egyptologists have to go on is random bits of pottery and mostly ruined buildings, this seems like an incredible stretch of the imagination, granted no more than time-traveling Hyksos, but still a stretch. The fact that Egyptologists feel they don't need to explain these anachronisms because the history of Egypt is a political timeline, not subject to science, is insulting both to the intelligence and to the integrity of anyone that bothers looking into the history of this preeminent ancient culture.