Without machinery at all.
we would repeat the process? what are you trying to say, that humans suddenly become too stupid to build machines forever and ever? no stuff, if cats suddenly had no legs they wouldn't be able to walk.
Apprantely RedGajin has something against animals.
Ok, I understand that you don't think that animals and humans are equal, but they should be treated the same as anyone else.
im perfectly fine with animals, i have a dog and i like my dog. but its a dog, as i said before, i dont let it have all the freedoms that everyone else in the house does. it does not eat the same food as us, it does not wear clothes. its a dog, sure you shouldn't kill it just for funsies, but its not the same as a human.