I don't understand the point of 4k

[PiKe]

I was in Curry's just having a look at the large 50 inch televisions and noticed that up close, you can't see the pixels on the 4k sets, but as soon as you move back to a normal viewing distance of 5 to 6 feet, 1080p and 4k are indistinguishable.

So to me, unless you have an 80 inch screen, what exactly is the point of 4k?

 

[PiKe]

The human eye has a finite resolution, the benefits of 4k or UHD if that's what you want to call it, are not seen unless view a 50 inch TV under 5 feet away, and my eyes are fine thank you very much.

It's just comical to see people buying into 4k with screen sizes of 40 inches.