3 ms·

> That means, again theoretically, a land based 864-core cable can carry over 200 exabits per second, and an oceanic 96-core can carry 23.5 exabits per second.

> That means, again theoretically, a land based 864-core cable can carry over 200 exabits per second, and an oceanic 96-core can carry 23.5 exabits per second. That's bananas. The total amount of data generated per day is estimated to be 97 zetabytes [0] which is only 9 exabits per second. You could run the entire internet off a single cable that winds its way around to every single person and they could just siphon off the data they need. [0] https://www.statista.com/statistics/871513/worldwide-data-created/ https://www.statista.com/statistics/871513/worldwide-data-cr...

gpderetta 4y ago
Next question is, how long does the cable need to be to store the content of the entire internet and get rid of any other storage?
- tecleandor 4y ago
  The entire internet as a circular buffer in a very long fiber cable. Just wait for your content to appear. :)
- iso1631 4y ago
  https://live-counter.com/how-big-is-the-internet/ https://live-counter.com/how-big-is-the-internet/ puts the size about it at 23 million PBytes. 1000PB = 1EB, so 23,000 Exabytes At 200 exabits per second, or 25 Exabytes per second, it would take you a thousand light seconds to send the entire contents of the internet. With the speed of light in the cable about 2/3rds of C, that would require about 600 light seconds of cable, which is about the distance from the sun to the earth.
  - gh02t 4y ago
    Quick googling tells me the typical diameter of an undersea cable is 25 mm. If we assume let's say 15 mm of that is actual fiber (wild guess) and approximate them as a single cylinder that works out to only about 0.03 km^3 of glass... that's a lot more feasible than I was expecting. Comparable to the volume of concrete used to build the Three Gorges Dam. I suppose it's only that "reasonable" because we're talking about a hypothetical 200 exabits/s, puts into perspective just how fast that is. https://www.wolframalpha.com/input?i=pi+*+%28%2815%2F2%29+millimeters%29%5E2+*+%28600+light+seconds%29 https://www.wolframalpha.com/input?i=pi+*+%28%2815%2F2%29+mi...
- derkades 4y ago
  Related video, using pings to store data: https://www.youtube.com/watch?v=JcJSW7Rprio https://www.youtube.com/watch?v=JcJSW7Rprio

gpderetta 4y ago

Next question is, how long does the cable need to be to store the content of the entire internet and get rid of any other storage?

tecleandor 4y ago
The entire internet as a circular buffer in a very long fiber cable. Just wait for your content to appear. :)
iso1631 4y ago
https://live-counter.com/how-big-is-the-internet/ https://live-counter.com/how-big-is-the-internet/ puts the size about it at 23 million PBytes. 1000PB = 1EB, so 23,000 Exabytes At 200 exabits per second, or 25 Exabytes per second, it would take you a thousand light seconds to send the entire contents of the internet. With the speed of light in the cable about 2/3rds of C, that would require about 600 light seconds of cable, which is about the distance from the sun to the earth.
- gh02t 4y ago
  Quick googling tells me the typical diameter of an undersea cable is 25 mm. If we assume let's say 15 mm of that is actual fiber (wild guess) and approximate them as a single cylinder that works out to only about 0.03 km^3 of glass... that's a lot more feasible than I was expecting. Comparable to the volume of concrete used to build the Three Gorges Dam. I suppose it's only that "reasonable" because we're talking about a hypothetical 200 exabits/s, puts into perspective just how fast that is. https://www.wolframalpha.com/input?i=pi+*+%28%2815%2F2%29+millimeters%29%5E2+*+%28600+light+seconds%29 https://www.wolframalpha.com/input?i=pi+*+%28%2815%2F2%29+mi...
derkades 4y ago
Related video, using pings to store data: https://www.youtube.com/watch?v=JcJSW7Rprio https://www.youtube.com/watch?v=JcJSW7Rprio