OK, so I understand the basics around screen resolution in that higher res screens make images etc look more crisp, but what's confusing me is the real estate and text size. The reasons for my questioning are that I'm contemplating the iMac 5k, but ideally don't want the same thing that happened when I bought my Macbook Pro. I bought the late 2011 (pre retina)15" MBP but opted for the hi-res screen (1680 x 1050) which increased real estate but made text etc tiny, meaning that I had to set minimum text sizes etc for internet browsers, and also find that I have to view word documents at 150% rather than 100%. Test in tabs, and menus etc is still small though. I was willing to accept it back then as a compromise, but now I'd rather just have everything displayed right natively. I initially thought that due to the resolution that the 5K screen would make everything tiny, and I've have to set minimum text sizes for web browsers, and have to read documents at 150% again, but then I realised that when I've looked at retina MBPs which have higher resolution than my current system, the text size etc displays 'normally'. So the question is, how does the 5k screen display things natively is it more like my MBP or like the retina MBPs and non retina iMacs? Also, if it's not purely resolution that dictates text size etc what is it? I hope this makes sense? Any help appreciated.