It is not his hypothesis. It is a well known problem. The same happened on some 2007, 2008, 2009 (17" in my case) MBPs.
No, no, and no. Please read, because you aren't getting it. The well known problem is problematic GPUs (I have a 2008 with the same problem). The OP has alleged that high temperatures led to that problem, and I'm disputing his
theory. The OP knows a few facts and is using them to make an
invalid causal inference (actually, multiple invalid causal inferences). This is Logic 101. The facts he knows are:
• His GPU failed
• His temperatures spiked prior to the failure
• Many other users had GPU failures and spiking temperatures
The problems with his theory—that high temperates led to his GPU failure—are manifold:
• It assumes that high temperatures caused the failure, which is not deterministically proven
• It ignores another hypothesis: that the failure was due to an innate defect that had, as a
byproduct, high temperatures
• It generalizes evidence from the aggregate to the specific. In other words, even if the prevailing theory that high temperatures were causing GPU failures is correct, it is presumptive to assume that the same thing happened to his machine (i.e., failure to exclude other hypotheses)
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There's no speculation on what happened to my MacBook. All the reports online suffered with the same problem as mine, and an Apple tech confirmed it as well when I had it fixed.
You're just making stuff up at this point. I believe that an Apple Tech confirmed your GPU failed. I do not believe that he confirmed it was "due to" high temperatures (or if he really did say that, I posit that he didn't know what he was talking about).
Your lack of reading comprehension is leading you to superimpose your theory onto "all the reports online" that you're reading.
If you're unable to grasp this...well...I guess that sucks for you. There's only so many times you can lead a horse to water before you might as well just euthanize him.