"Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway." —Tanenbaum, Andrew S.

https://en.wikipedia.org/wiki/Sneakernet#In_media

The latency is the problem, not the bandwidth.

(By the way, considered as a means of transferring information sex has lots of bandwidth, too. Not, yet, useful for sharing patches, though.)

Well, not consciously-designed ones.