alt Hacker NewsDoes this really work? I would think the ping time would not be dominated by speed of light, but by number of hops, and connection quality.
As a hypothetical example, an IP in a New York City data center is likely to have a shorted ping to a London data center, than a rural New York IP address.
The speed of light sets a minimum bound even if you don't account for that, and these are coming up less than the minimum bound.
It also reminds me of this old story: https://web.mit.edu/jemorris/humor/500-miles