That’s not a valid criticism of the cooling design of that computer. It may or may not be an adequate design, but this video doesn’t really address it. There’s

That’s not a valid criticism of the cooling design of that computer. It may or may not be an adequate design, but this video doesn’t really address it. There’s no particular reason the fan should be physically next to the CPU or heat sink. Its job is to draw air into the computer, across the heat sink, and then back out. You generally don’t want the air intake and outflow to be too close to each other since that would typically cause heated air to be drawn back in, making the cooling a lot less effective. And you mostly want the air flowing in a channel (rather than blown all around inside), so you can expel most of the heated air. So, e.g., you have intake on one side of the computer, a channel for the air to flow inside the computer, and a fan at the other side of the channel, pulling air through. This will be effective if the heat sink on the CPU is anywhere along the channel. There’s no reason it needs to be next to the fan. A piece of copper, BTW, is a way to move heat from some place that doesn’t have good exposure to the air channel to a place where it does. You only need to do that if the heat sink doesn’t already have good exposure. To do this properly, I think you’d want to analyze the design and then run some tests to see under what circumstances heat builds up. Lost a little respect for that guy. He’s a smart guy, so I know he understands this stuff. You’ve got to wonder why he’s bullshitting his audience like this. Seems clear to me this video is about promoting himself rather than discovering or explaining flaws in the cooling system of Apple laptops. (Or maybe I’m giving him too much credit, and he really doesn’t understand this stuff. Either way, it’s not a good look for him.)