Reading from the Emberverse series, the big cities would collapse, and state governments where large mega-cities are located (like New York and California) would collapse, because food distribution would be wrecked and there are simply too many mouths to feed.Crossroads Inc. wrote:Well shoot Across land you could rig up single towers. The "Clacks" of the Discworld franchise use 16bit single towers. There was a thread a while back debating how much "Bandwidth" you could send using that "dave" did a fantastic job:Grumman wrote:I'm imagining a fibreoptic cable crossing the ocean floor... and at the other end there's a guy holding it up to his eye with one hand, pencil in the other.Guardsman Bass wrote:There might even be faster methods of sending messages, such as chains of light-signaling stations that can relay messages through each other across hundreds of miles if you absolutely had to get a message somewhere in a few minutes.
It would take a LOT of organization, and without power might be the work of a decade to connect up the major cities of the nation, but it COULD be done and using just binary 16bit messaging you get over 65000 combinations. Using different colors or different symbols you could get even more. So communication nationwide is doable.But to get back on track, the theoretical throughput would be 16bits * frames per unit time.
So, for example, if your human operator can read 2 frames per second, you get 16 bits * 2 = 32 bits per second. If you have a computer operator that can read 2 million frames per second, you get 16 bits * 2 000 000 = 32 million bits per second, or ~3.81 MBps.
This is with no error correction, no overhead, or anything else, just raw transfer speed.
Yes, it is possible to transfer more information using special encodings, such as the one you mentioned
(0100 0000 0000 000 representing "Hello",for example), but that limits you to the 'language" that you use.
With sixteen lights, and assuming that they only have two states, you can have a maximum of 216 possible permutations of the lights, which works out to be 65 536 combinations. Given that there are upwards of 100 000 words in the English language, you may lose part of your message.
Notice that you have increased your transmission speed (whole English words per frame versus sixteen ones and zeros per frame) at the expense of content. But now I'm just rambling.
Now, if the lights had more states than just on/off, you have more possible permutations of the lights to play with and thus can send more information in a single "frame".
I think the REAL Question is not how could you rebuild society, but would such an event really lead to the initial collapse of society?
States that are loosely populated enough would not necessarily collapse, if they can rig up long distance communications networks, whether by pony, rail locomotive, or heliograph.
In Revolution, the starving hordes of Chicago devastated the countryside, which is why the Illinois government collapsed. I would be surprised if Oklahoma or Utah collapsed in that setting.