This is actually a really interesting topic. My laptop screen broke down a while ago and I moved so I'm now forced to use only one monitor for now after a long

This is actually a really interesting topic. My laptop screen broke down a while ago and I moved so I'm now forced to use only one monitor for now after a long period of using multiple (mostly 3) monitors. It feels like I am actually able to focus better and am less strained by unnatural monitor positions and the constant switching between monitors. I guess your focus is always only on one thing, and whenever you need to switch focus you can just bring that into the foreground instead of switching your eyes to look at somewhere else. This actually doesn't cost that much productivity. In most use cases one monitor is really enough. Though I guess programming, compared with other cases, does have a legitimate claim to using multiple monitors, especially when you're performing constant documentation lookup or running a live preview of the program, both of which can exist side-to-side with the code itself. I think the positioning of monitors is really key here. If you have to accommodate them such that all of them are in an unnatural position instead of the natural position that one single monitor can occupy, it can actually hurt your productivity. If their positions are mostly ergonomic, it should be much better.