I sometimes wander what I'll do when my eyes start to go.

By then, hopefully, user interfaces will be programmed in terms of points, milimeters, or other real-world units rather than pixels. Apple will probably have an easier time of this with the whole PDF architecture and all that. Microsoft and the X Window System will have a harder time, but it's going to have to happen.

Meanwhile, Mozilla turns out to be able to deal with configurable screen resolutions. I've configured it properly on my laptop and desktop, and now I find myself constantly needing to manually resize the screen fonts (control-+) as they always show up on screen too small (i.e., web sites have been assuming a lower pixel density than my screen). This is probably a harbinger of problems to come.