In case you’ve been wondering.
A scientist at the Swiss Federal Institute of Technology (home of Niklaus Wirth, another one of my heros) has discovered what he calls “global dimming”, according to this article. Basically it means that we have been getting 3% less light per decade over the last 30 years. That’s 10% less light now than we had when I was rocking the night away in obscure pubs. So if you think your eyesight problems are due to age or excessive drinking, now you know, someone is slowly dimming the lights out there, that’s why!