Ok, so counter-counter point. I was recently in the market for a laptop. The one I bought has a USB-C port and two USB-A ports. Because it's a Thunderbolt USB-C

Ok, so counter-counter point. I was recently in the market for a laptop. The one I bought has a USB-C port and two USB-A ports. Because it's a Thunderbolt USB-C Port, it even has a little lightning bolt printed next to it on the chassis. Previous laptops I've owned with USB-C could charge over it. This one can't. The model with the smaller screen can, but not the 15 inch. The slightly different model can, but not the one with the discrete graphics card. Why is this? I assume it's because charging the laptop at full utilisation requires over 100W. But really I have no idea.