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I would have to say not high. They struggle to keep the MBs cool as they are and aluminium wouldn't help the situation.
 
They struggle to keep the MBs cool as they are and aluminium wouldn't help the situation.

Actually, it would. Aluminum is a great conductor, so it does a terrific job of moving the heat away from the internals (and into your lap, as we've seen with the MBPs).
 
Actually, it would. Aluminum is a great conductor, so it does a terrific job of moving the heat away from the internals (and into your lap, as we've seen with the MBPs).

Yeah, good point.

I was referring more to the heat in lap problem. Should've been clearer.😱
 
I would expect that there is a better chance of a 12" MacBook Pro (which is still very unlikely) than a silver macbook. It's like asking for a white Mac Pro. There is reasoning behind the colors.
 
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