Well if you go high-enough resolution, then you can scale the display and it will be big enough to read, but also much sharper. You want integer scaling though,

Well if you go high-enough resolution, then you can scale the display and it will be big enough to read, but also much sharper. You want integer scaling though, otherwise you get unclean lines, weird "rounding" errors, etc. On my 2880x1800 macbook, 2x scaling gets me 1440x900 apparent resolution, perfectly sharp and very readable. If you've got a 4K screen, you can do 2x scaling to get 1080. If you've got 8K… well then I suppose you can do 3x scaling to get 1440p. Now I'd like to see that.