Speed matters: July 2018 update

OpenSignal just published an article/post entitled "Explaining the huge gap between fastest and slowest 4G upload speeds in the US."  As readers of this blog will know, I've posted frequently over the years (check these out) on the importance of speed (a.k.a. bandwidth) on the Internet.
The OpenSignal article noted that average 4G upload speed in the U.S. during the period from March 1 to May 29, 2018 ranged from 2.5 Mbps to 7.5 Mbps.  (click on the graphic for a full size version)

This made me curious about the upload and download speeds from my office here in the Incheon Global Campus.  So I did a speed test (click on the graphic for a full size version of the screen capture).
Draw your own conclusions, but I would submit to you once again that "speed matters"!