You are right in your final statement about the hard shell, and the size ratio, but that doesn’t make it completely impossible. Egg laying could work for humans if the shell was leathery and flexible, like that of some reptiles.
Humans could lay an egg large enough to hold a newborn, and since at the time of laying the insides of the egg would be mostly still liquid, a flexible shell would work out just fine for passage. Then the baby would develop inside the egg. Just like with birds.
You are right in your final statement about the hard shell, and the size ratio, but that doesn’t make it completely impossible. Egg laying could work for humans if the shell was leathery and flexible, like that of some reptiles.
Humans could lay an egg large enough to hold a newborn, and since at the time of laying the insides of the egg would be mostly still liquid, a flexible shell would work out just fine for passage. Then the baby would develop inside the egg. Just like with birds.