YSK reddit is fully 4K ready - The preview images on the front page are exactly 4x the native resolution, perfect for 4K viewing without resolution drop

I was bored researching 4K, so I verified this and figured I'd share.

When going to a 4K or 'HiDPI' screen from a normal resolution one (1080 I guess), you often want to increase the size, using scaling. Going from 1080 to 4K is a resolution increase of exactly 4x, so it makes sense to have images be exactly 4x the size 'in the background' for this purpose. Text isn't a problem since it's upscaled perfectly. It's just a font after all.