Yeah trading stuff or sending it over mail is pretty fast, just as a matter of illustration a fiat van with data tapes.
1 data tape:
800GB
105,4x102x21,5
1 van
2670x1870x1662
Makes
25x18x77 = 34.650 tapes
Makes 27.720.000 GB (39.600.000 Compacts Disks)
Ok now let us see how much kbps that van can create
We'll have it travel from Rome (Italy) to Bergen (Norway) which is 2626.83 km.
Now with 2 people driving you don't need to count in sleeping times etc. (to make this a bit easier)
An average speed of 80km/h (50mi/h) that takes 33h.
118800 s for 27.720.000 GB is 233,3 GB/s
Find me some line from Italy to Norway that can do that!
:) yes I was bored