I don't know what it is exactly you think I am wrong about. My experience is my experience, I'm not wrong about it.

That chart has no specific temps associated with it and is using a completely made up timeline (it even says so at the bottom). I'll take my real world experience over a made up timeline.

Like I said, I've been using some chips for 10 years or more and using them hard and they still work fine. All modern CPUs have cooling fans or they would burn up almost immediately. The point was whether or not laptops have SUFFICIENT cooling. I simply said that if they don't I consider them defective. Based on my experience and that chart I must conclude that every laptop I've ever used has sufficient cooling to live a long life without adding additional cooling. Even my Macbook Pro which runs 24x7 most days at 97+ degrees Celsius for the last 4+ years hasn't degraded yet (though it's definitely not sufficiently cooled or it wouldn't throttle with GPU usage - and because of the way it is cooled, those cooling pads don't really help anyway). Again, I'm not arguing that heat doesn't matter, I'm just saying notebooks should have sufficient cooling already or they are defective. Having to add additional fans to your laptop just because you are using the CPU for long periods of time is like having to add additional cooling fans to the radiator of your car just because you are going on a long trip. I wouldn't by such a car or such a laptop.

I make sure desktop systems I build have sufficient cooling to actually be used. I expect laptop manufacturers to do the same but maybe you think I'm setting the bar too high?

Yes, heat can and will reduce lifespan of chips but the reality is that they will still last many years even running hot as long as you don't push them past their maximum safe operating temperature. If it dies in 10 years instead of 20 years then I really don't care.

I'm not disagreeing with you about heat shortening the life of chips. I'm disagreeing with you about whether laptops should be sufficiently cooled as designed (I believe a decent laptop SHOULD be) and perhaps the timeline in which you believe chips will fail when subjected to higher than average temps. The oldest CPU I have in operation is a Pentium II. The oldest laptop CPUs I have are a Pentium III and PowerPC G3. I haven't even managed to kill those yet. Granted, they see little use now but they ran hard for many years and still get fired up occasionally.

Here's a better (though old) article on the subject: http://www.overclockers.com/overclockings-impact-on-cpu-life/

One of the takeaways is that thermal cycles have a far greater impact than just running hot.