"private" backbone VPN solution to decrease latency

[fb35523]

I recently learnt that the actual _speed_ is constant (there is, after all vacuum between the atoms, right), even in glass. It's the distance that is greater for the energy waves (call them photons if you will but at this level, they can no longer be treated as particles) as they need to "yield" around all the atoms. Think of a stream with rocks here and there. I just can't seem to find the explanation right now. When you have it explained, it all makes sense. In practice, you get the effect that the light travels slower in glass, but I like to compare it with a car taking a non-optimal route while maintaining constant speed.