because it cant, its skitzo bullshit to muddy the waters on the truth of ancient history

for starters the "pyramids" arnt actually pyramids, the casing stones on the outside of them are much newer than the internal stones, if you go look though the images you will notice that on a few of the pictures of the main pyramids you see some of the inner stones which are massive and a different colour, its pretty blatant really, look i know the link is full of crap info wise but it has the picture im thinking of https://www.khanacademy.org/humanities/ap-art-history/ancient-mediterranean-ap/ancient-egypt-ap/a/old-kingdom-pyramid-of-khufu

year currently and you would be amazed at what you can do with a few thousand people who will work for just their food

as for the steam engine they understood the principle that steam could do work, if you know anything of roman artisans yo know that they could build just about anything they put their mind too, go look at some of the caged glass, "There is the actual first recorded steam engine in history, Hero of Alexandria’s Aeolipile. Widely published and noted in the Roman world, this device demonstrated that steam could be used to convert heat into work. There is little evidence of it actually being used for practical purposes, however. It continued to be seen as a technological wonder for amusement, much like magnetism centuries later." again shit source but you can look this shit up your self https://medium.com/not-be-condemned-to-repeat-it/could-rome-have-invented-the-steam-engine-7a3b03d6b37f