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Sixty Symbols -- What is the maximum Bandwidth?
Very interesting video, but a pity he went in to all that detail to end with a figure as vague as "1 terabyte in a few hundredths of a second".
If "a few" is 5 we'd get 20 Tbytes/s, if a few is 50 we'd get 2 Tbytes/s.
From wikipedia it seems optical fibre bandwidth is also limited by distance, due to dispersion, but current experimental research results are approaching 100 Terabit/s over a single channel.
(26Tbit/s in 2011, 73.7 Tbit/s in 2013)
http://en.wikipedia.org/wiki/Fiber-optic_communication#Parameters
100 Terabit/s is 12.5 Terabyte/s, which is 1 Terabyte in 0.08 seconds.
So while it still doesn't tell us what the theoretical limit is, for our currently achievable maximum speeds "a few" is 8.