Problems with evolution? Submit your questions.

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As for human mutation, as I say, we can measure the mutation rate. The average person has about a hundred mutations not acquired from their parents. And this is demonstrably enough to account for our divergence from chimps in the time available --- I can show you the math if you like.
  —"Dr Adequate"

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Forgive me if it's too cheeky to ask, but can you please show the math, just for the rest of us? It's kind of awesome to see how various fields of study mesh together, and these are two of my favourites.

Thanks, very good links. Something else to blow holes in the creo ship (yeah, it sunk ages ago, but sometimes they attempt a refloat).
Does that site have much more like this? I often use Wikipedia as intro to stuff, but it gets awful' borin' sometimes. Would be good to have another decent source for stuff.{abe: how does one 'acknowledge' a post? It seems better than continuing an ungodly chain of messages with little useful content.}

The old classic: bacteria developing the ability to metabolise nylon dimers. Linky-slinky.9 left.

Brain size is not related to intelligence. This has been known for decades.However, this is only concerning modern humans who barely live past the age of 70 in the mean. Were we to live significantly longer -- maybe 2 centuries would be enough, maybe more; I'll try doing some maths to get some guesstimates -- it is likely we would no longer be able to form new memories or connections.
There simply wouldn't be enough space in the brain left, both physically and biologically: there's only so much room for dendrites and axons, there's only so many neurons to form them.In that case, yes, having a larger brain might help, but you'd have to get around the issue of mortality to even bother considering it.