Sounds nice and all, but does any media currentlry support such aspect ratios? i hear 21:9 sometimes has issues in some games that only support 16:9, guessing these wont fair any better or in some cases worse?

I've considered these ultra wide screens, and at 1st glance this combined with curving seems cool. However, I use triple 1920x1200's monitors with racing games(Asetto Corsa and iRacing correctly render triples, Project Cars does NOT) that actually render each monitor separately. And, the games take into account, viewing distance, monitor size, bezel width, and angles between the monitors to create realistic FOV's up to 180(if you wanna sit with your nose against the center monitor lol). The resolution is 5760x1200, close to the pixel count of 4K. I sit about 22-24 inches away and can see almost dead left and right. My point is that the ultra wide single monitors will not create the same effect as correctly rendered triples. It will either stretch the image or render a larger viewing area, but cannot compare to triples with the outside monitors angled inward past 45 degrees. If racing sims were not my priority, I might consider one of these.

seems like you have a racing simulator dream setup ! my self i am considering a while an ultra wide monitor 34'' but i am not in a rush i am pretty sure my gtx 770 will not keep up with it at all so i am kind of waiting to grab a gpu and monitor together ! on the other hand i am not that much into racing simulator games but i do not have a tv literally i live alone and i see no use for a tv so my pc is my music center and movie watching center so a 34'' inch monitor goes a lot more farther than gaming for me ... still those ultra ultra wides .... sounds weird ...we will see though i mean 20 years ago most people where still rocking 4:3 monitors

@Noisiv zero light (output) isnt limited to oled... the fact that even samsung isnt doing oled tvs, should say enough (even that they like to push "crap" no one really needs, aka curved screens that being used for things beyond gaming/movies). and why would you limit yourself to one type of tech? aka if you could get a screen that has the 'zero" black, 100% adobe coverage with a 10bit panel, 120Hz, flickerfree light, and is NOT oled, you wouldnt buy it? lol..

From Q u o r a Digest: The aspect ratio of the human eye is about 5:3, except it's shaped like an irregular oval: https://qlo5ag-sn3301.files.1drv.com/y4m_ZQIIScvlL37Iq5F9A8oB_wLmVnuSbY30SIS1jfqrK_x790Zm395sGnFrWLYPwinj7HAwoGMtxa00VChNmsZ6VU0a2kp102ZjV6KECcLiEGuhCyyW52FmvP2gOFgPUCN6VapKQKif5PoWhteiB2wHz4eiaJxYjy9qm2U-M5IZn7K7vnEyvnVMUohCI66LXPk5fdgN3BEE008WTA0HYJPdQ?width=220&height=141&cropmode=none So i guess 15:9 is nearest to 16:9 idealy P.S.(I needed to put spaces for q u o r a because he puts asterisks don't know why!)

Taking into account that usually people have two eyes, and that those two eyes are separated horizontally, not vertically, I would assume that human vision is closer to 10:3, although have no data to proof it. Unless of course instead of human eye you meant human vision.