It depends on the type of work for me. I am super productive on a Dell 34" widescreen for Xcode work where I have Xcode and the iPhone simulator next to each o

It depends on the type of work for me. I am super productive on a Dell 34" widescreen for Xcode work where I have Xcode and the iPhone simulator next to each other. Or when I have to write documents and can have three browsers side by side. Multiple displays have never worked well for me. Too much to look at. I prefer to work on macOS and use different Spaces for different contexts. I disable the 'smart spaces ordering' and just three-finger swipe between a bunch of fixed spaces I have setup. On the complete opposite side of this setup .. my most productive Go or C hacking has been on a small laptop with a fullscreen terminal or emacs window with the font size set to 15 or 17 or so. Nothing else on the screen, just code.