Talk:Quests/@comment-25733368-20150710001330/@comment-25637142-20150710153236

Here's a few technical aspects of computer visual system.

First, you have the sampled image dimension in pixel resolution. Then, you have the physical dimension of the monitor in inches. Finally, you have the all-so-important parameter no one gives a damn about called "dpi" or "dots per inch".

That means, each inch of the screen consists of a number of dots and each pixel of the digital image is physically displayed using a cluster of dots. 1024x768 pixels can be displayed using 1024x768 dots and if the dpi was 64, it would be a 16" by 12", or a 20" screen by diagonal dimension. And if the dpi was 128, it would be a 10" screen.

Even when you can up the dpi to 256 and get things displayed in a 5" monitor, you won't be able to see a damn without a magnifier. Hence, to the user, the physical dimension (measured in inch) of the screen matters and is the determining factor whether you want to view the web page at 100%, 120% or 150% zoom ratio to emulate the effect of having low resolution at a certain dpi at the cost of having scroll bars (as extensions to your physical dimension).

That's why in the above example, people who have 20" screens will likely to view at 100% zoom and people who have 10" screens will likely to use 200% zoom to emulate the effect of viewing 1024x768 px image in 512x384 px window (you'll notice the scrolls will be half the screen width/height as it's doubling the size of your monitor, by tech-magic).

When your monitor is rated at 1080p, you have 1920x1080 dots (or any multiple of the resolution) across your screen and it is fully capable of producing full HD images. It said nothing about the physical size of your hardware. Human perception has its limits, plus, some people are more impaired than others, they have their own preferences when it comes down to zoom level of the browser, which affects the interpretation resolution of the displayed image, which means you can get scroll bars and weird stuffs on your $100 monitor, just as others do with $20 tiny monitor.

A huge screen user who wants to view stuffs in 150% can get the scroll just like any normal-sized screen user at 100% zoom. You just can't see the effect as clearly on this site 'cos Wikia gimped us. Try adjusting your browser's zoom level elsewhere and see the scroll bars "magically" appears/widens.

TL;DR: Dechidechi has problems even though he has huge screen, this post explains why and digital image processing doesn't work the way you think it did