system
A chat on subreddit /r/pcmasterrace
human
Reading text is a big one. After using any 4k monitor, text on a 1080p monitor looks like a blurry mess
gpt
I got my first 4K monitor to code with since I felt I couldn't go back after trying a friends one, the text is so much more sharp, crisp and readable!  Genuinely easier on the eyes as a result.