The M4 iMac is a beautiful computer that feels more and more like it fell out of a universe where laptops never took off. You can see it, can’t you? In a world without laptops, the iMac would be the ultimate computer. Instead of a box and a screen with a tangle of wires leading everywhere, everything you need is right there, jammed into an impossibly thin aluminum chassis. Monitor, processor, speakers, webcam, microphones, and all the ports: all built in. It’s elegant. It’s restrained. It’s