An editor of a noted scientific journal says he has discovered a genetic defect that seems to set back the clock on human evolution by more than a million years. http://www.world-science.net/exclusives/060221_unertanfrm.htm
It's an interesting article, but more research needs to be done before anyone can say it's reverse evolution, it could just be a genetic mutation. However, I did note they said the children didn't know the month etc, that could be explained by the parents poor knowledge of the children's language, and perhaps the children didn't split time the way we do.
But those people have vocal chords and the physical structure to walk upright, they just don't because they are retards.
Sounds like a simple form of mental retardation. The imbalance problem could be due to a slower clockcycle of the brain. If you take, for instance, the segway, if it used a slower cpu it couldn't correct it's imbalance fast enough and would wind up falling over at some point. Same can be said for the speech probs, extreme mental retardation. Any coincidence apes/chimps are retarded compared to the average human?
Apes and chimps are unable to speak because of a different larynx structure. They are quite comfortable 'talking' via sign language, or other symbolic medium.