We have reached the post-physical era. On the internet, all that matters is our thoughts. The body is obsolete. At least, whoever designed my computer interface thought so.
Clean design means reproducibility, modularity, uniformity, simplicity.
By March 1995 I no longer had tendonitis in my hands. By two days later I could not speak. I could not write. I could not type. I suffered a freak injury to my knee and could not walk because I could not hold my weight on crutches.