Comment by wraptile

Ergonomics is one of those things where you don't understand it until it effects you. Everyone can tolerate discomfort at some level and at different levels but obviously there best practices that manufacturers can partake in to make hardware more ergonomic.

For example, the monitor should be at eye level vertically but with laptop that's very hard to accomplish unless you position yourself in a reclined fashion to bring down your eye level closer to your lap - on a macbook you get wrist cuts like this.

One of the most important thing that makes a good ergonomic laptop is the ways it accomodates as many positions and setup as posible so your can rotate your working position to avoid excessive strain on one particular area. So when your back is tired you slouch down, when your wrists are tired you straighten up, when your eyes are tired you adjust the display brightness/theme etc.

When taken seriously it's totally possible to work safely even in poor conditions like outside or on a train but devices that completely ignore ergonomics just don't even give you the chance.