Hi, AOkid.
AlphaOmegakid writes:
A person as wise and educated as you should know better than to make a statement like this.
Dude, it wasn't meant to be an in-depth, scientific analysis: it was just a perspective. Perhaps it was a little careless, but you didn't do much better yourself:
AlphaOmegakid writes:
Chimpanzees have a brain size of 400 cc's avg. Homo erectus has a brain size of 1000cc's average. That is 250% increase in brain capacity in roughly 1-1.5MY in evolutionary time.
Fine. Except that, strangely enough, the chimpanzee wasn't around until after
Homo erectus, so there is no evidence of a 250% brain-mass increase. What does that do to your estimates (don't bother answering that: it's rhetorical. I can do the math myself).
Also note: why is it such a big deal for the
erectus brain to have enlarged so much relative to ours in the same amount of time? You realize that, if just one additional round of cell division occurs in the brain early on, you can double the brain mass, yeah? That could probably be accomplished by a single mutation. That's a 100% increase in a single generation.
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Think of this: even the brainiest
Homo erectus had only about 75% of the brain mass of the average
Homo sapiens, yet, as far as I can ascertain,
H. erectus was not significantly smaller than
H. sapiens overall. Where we have a 1:50 ratio of brain to body (mass), the biggest-brained
H. erectus has only a 1:67 or 1:70 ratio (most have 1:75 or 1:80). Compare to chimpanzee at 1:125.
Note: this is all my own math, and it was done based on numbers found in random papers from Nature and the H. sapiens ratio came from Wikipedia.
Do you believe that
Homo erectus had the brain power to design and build the Tower of Babel without God's help (surely you believe that God didn't help them)?
I personally do not. However, this is based more on archaeological evidence and dating techniques that place
Homo erectus in sediments wherein only the simplest types of tools are ever found, than it is on a rigorous investigation of neurological capacity. You, no doubt, do not accept this type of co-occurence evidence as meaningful.
-Bluejay
Darwin loves you.