How about you use your knowledge to educate those yapping on about a change like this causing RROD because you know as well as I do that had very little to do with design changes on the 360.
With that cooler in the XBox One, they could probably cool 1000GBytes of ram without risking rrod2 , so the problem is not getting rid of the additional heat (though ddr3 chips are more probematic than gddr5 chips, by design). The problems are simply in the engineering department: 1. How do you add 4GB ddr3 ram onto a 256bit bus (they come in *16bit widths max) ? 2. Can your APU drive the additional memory? 3. Did you order enough dram chips or are you willing to pay spot market prices because you didn't order enough? Some things can be solved with lots of cash (though I doubt MS wants to lose too much money on hardware), some other thing might require months of testing - time MS simply doesn't have.