A trillion-megagram access bottlenecks

The upper line bandwidth matches the lower density.

The bottom line is a gigabyte, but it's only a gigawatt, and multiple ports are blocked. By the density of access, we go up to a megagram, avoiding “small pipes to pull large pools.” Uplinks suggest redundancy for polymerization: two megabeams bound, one cut off top, and the bandwidth halved without interruption.