Both get referred to as 2K. https://en.wikipedia.org/wiki/2K_resolution

I would prefer 2560×1440 to be called 2K5 but the industry is too comfortable with 2-letter resolutions now.

No, 1080p is 2K because its width is 1920 (close to 2000), 2160p is 4K (3840 px wide), 4320p is 8K (7680 px wide). It’s not 1K, 4K and 16K.

The town name and state is also very easy to figure out, and you can easily verify it by checking where Musk will be holding a town hall today. For each of the most violently crossed-out words, D███ and C███████, there is just one first name matching whatever is visible. Yes, I copied and pasted letters from elsewhere and the width is correct.

Greedy marketers just wanted to show a higher number… That’s why they switched from height to width, too.

By having seen a low-end 2017 laptop?

1080 rows of 1920 pixels each
1920 columns of 1080 pixels each

https://www.xkcd.com/1889/

If 2K referred to the number of pixels, it would look like this:

FullHD is actually a little over 2M pixels.

takes the aspect ratio from 3:4 to 16:9. so pixel density is barely better

What? Screen aspect ratio and pixel density are quite different things. Most FullHD TVs are widescreen and have pixel density below 36 ppi, and while high-DPI 4:3 screens are rare, they are not impossible in any way.

The terms “2K” and “4K” were totally commonplace since about 2010, although not as prevalent as 1080p. I hate how the video industry switched to marketing horizontal resolution (and rounding it up) just to make the number look big.

I know the difference but there are lots of people who aren’t really savvy with video technology. I wouldn’t blame them for thinking that ［🢐 １０８０ 🢒］ is just barely better than 1024x768.

2k and 4k does not refer to horizontal resolution but the number of pixels

Nope. 1920×1080 is 2 073 600 pixels, which would be 2M. “2K” is the horizontal resolution (1920) rounded up. A screen with literally 2K pixels would be around 50×40, lower than the crappiest handheld consoles.

If you don’t want to use the potentially unstable Nightly, Dev or Beta, you can use Fennec (stable builds with dev features).