OK. Then you explain after: days of proven expert research, white papers, and impressive RESULTS from the big name game developers all over the place, why JamesMac clings to his belief that his view is superior.
I have absolutely NO patience for people that can't even use a search engine and just go spouting their uneducated beliefs.
I am NOT an engineer, but have also been a Mac user and overall tech enthusiast for some 30+ years. When this topic (64bit) first came up the day after the preso, I Googled... I read.. and I formed a pretty solid opinion of "wait and see", because 64bit is even stated in the Wiki entry as NOT being only for memory management over 4gb (I posted that link here even!). Mainly, that there are other advantages to going 64bit, like the registers being larger and "possibly" being more efficient.
Going 64bit seems to fit the Apple mold, OS philosophy and modus operandi to a "T", wouldn't ya say? Apple has through there history been able to do more and faster with less hardware thrown at their software. Why do you think that is? It's tweaking and pulling every last watt out of their processors, motherboard designs, cache arrays... whatever it takes to squeeze everything out of the hardware by optimizing the software.
IF JamesMac IS telling the truth about working for 2 of the largest tech companies ever... that would make one of them suspiciously and probably Microsoft. Well what can we say to that, other than: NOPE... he doesn't get it, because the whole company is devoid of anyone that does. The rollout to 64bit was a mess, and building anything on top of that woefully backwards NT kernel is going to strangle them eventually.
So last but not least: I'm still sticking to my assessment that JamesMac is a troll for a) remaining intentionally stupid on the matter and b) trying to wiggle his way out with his unproven resumé and against all other expert testimony and actual usage by dev's seeing the results before their very eyes.
Or should we just chalk up all those killer results and reports coming to light, to Fairy Dust, Unicorn Piss... or the "Reality Distortion Field" cloud hovering over Apple HQ?