Comment on Google Fiber goes big with 20-gig plan
prorester@kbin.social 1 year ago
Why are people doubting this? This opens up massive possibilities for people, especially those who want to start businesses outside of city centers.
You could:
The biggest thing would be 8k streams. 360 8k streams would be even crazier. 360 videos are filmed using 3-6 cameras depending on how much fish-eye you want. True 360 requires at least 6. If each is filmed at 1080p that's ~6k total resolution, but since you're only watching one section of the video at a time, you're really seeing 1080p.
Those "8k 360 videos" up on youtube are a lie! They aren't 6x8k, but most likely 8k / number of cameras. True 360 8k video would be 6x8k cameras.
A single 8k stream at minimum requires ~50Mb/s. Multiply that by 6 and you're at 300Mb/s just for a single 360 8k stream. Family of 4 --> 1.2Gb/s just for everybody to watch that content - and that's the minimum. If you have a higher bit rate and aren't streaming a 30 fps, you can quite easily double or quadruple that. Family of 4 again means 5Gb/s if everybody's watching that kind of content in parallel.
But this is just the beginning. Why stop at "video". These kinds of transfer speeds upon you up to interactive technologies.
It would still not be enough to stream 8k without any compression whatsover to reach lowest latency.
8k = 7680 × 4320 = 33,177,600 pixels. Each pixel can have 3 values: Red Green Blue. Each take 256 (0-255) values, which is 1 byte, which means 3 bytes just for color.
3 * 33,177,600 = 99,532,800 bytes per frame
99,532,800 bytes / 1,024 = 97,200 kilobytes
97,200 kilobytes / 1024 = ~95 megabytes
So 95MB/frame. Let's say you're streaming your screen with no compression at 60Hz or about 60 fps (minimum). That's 60*95MB/s = 5,695GB/s . Multiply that by 8 to get the bits and you're at 45,562Gb/s which is way above 25Gb/s. Hell, you wouldn't even be able to stream uncompressed 4k on that line. 2k would be possible though. I for one would like to see what an uncompressed 2k stream would look like. In the future, you could have your gaming PC at home hooked up to the internet, go anywhere with a 25Gb/s line, plop down a screen, connect it to the internet and control your computer at a distance with minimal lag as if you're right at home.
In conclusion, 25Gb wouldn't allow you to do whatever you like. You could do a lot, but there's still room. We're not at the end of the road yet.
offload computing to the cloud (no need for a gaming PC if you can just play them online)
Unless you can live very close to one of the data centers doing the computing to minimize the number of hops, that just isn’t even remotely doable with modern networking equipment
Google tried it with stadia and gifs like this show why it doesn’t work for most people
There are people on the internet with about 2-3 ms of ping. I'm not a network engineer to tell you how that's even possible, but I've seen it. I'm on 15ms to most game servers right now on a copper line.
Google Stadia failed for different reasons. Nvidia Go (or whatever it's called) still exists. Just because I have a shitty copper line doesn't mean fibre will be as shitty.
Am thinking that in somewhat near future network boot will become a lot more dominant than it use to be. Infrastructure speeds are becoming sufficient to do somewhat longer boot but at the cost of significantly simpler administration and issue troubleshooting.
I’m just doubting Google will actually get it done. They’ve already abandoned fibre expansion once, no reason to think they’ll stick to it this time around.
kogasa@programming.dev 1 year ago
Yeah, man. Thank God someone is finally thinking about the family of 4 simultaneously watching 8K 120Hz 360 degree streams.
Also,
bandwidth isn’t the same as latency. This would not let you remote control “with minimal latency,” it would be exactly the same as it is with say 20Mbps download.
lossless and visually lossless compression dramatically reduces the amount of bandwidth required to stream video. Nobody will ever stream uncompressed video, it makes no sense.
If you want to know what an uncompressed 2K stream looks like, look at a 2K monitor.
prorester@kbin.social 1 year ago
Again, just because it isn't being done yet, doesn't mean it won't be. Every time technology progresses, we find new and interesting ways to fill the new space created by it.
Nobody thought it would ever make sense stream games over the internet with Nvidia Go (or whatever it's called), but it's being done. Nobody thought it would make sense to turn a browser into a nearly full operating system, but that's about done.
Genius, why didn't I think of that. Thanks for pointing that out.