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Originally Posted by explosives
Thats not going to happen unleass the skinniest and weakest of our species end up suirviving and the rest of us dyeing off.
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Not So fast on that.
At a pivotal time in human evolution, around 2.4 million years ago, a muscle gene underwent a disabling alteration. And they say this may have made all the difference, leading to the enlarged brains of the lineage that evolved into modern humans.
For example once we gained more brains we were able to control fire to "soften" meat in order to chew it easier. (try chewing raw meat and tell me it's not tuff) which cause smaller jaw muscle.
Our leg and arm muscle became smaller once we gained the ability for tools and weapons to hunt with. We no longer needed the brute force to tackle prey.
The smarter are generation become the less we'll really need to do for ourselves. To make space for more brain mass then our craniums would become larger but our bodies would weaken due to our reliance on technology and smarts rather than phyisical force to complete difficult taks requiring muscle. You don't go dig a pool with a shovel anymore u dig it with heavy equipment such as a Backhoe. We don't carry block to the top our building to create them we use cranes. see where i'm going? Less physical and more mental smarts to say "How can i make this easier?"
