Some of the ol' time Vorts will remember how I've been ranting for years
on how the vacuum is a near fricionless fluid under extreme pressure...
well, the theorists are finally coming around... they got the nearly
frictionless part in, now all that's left is to add some 'pressure', and
voila!
-Mark Iverson
Liquid spacetime: A very slippery superfluid, that's what spacetime
could be like
http://phys.org/news/2014-04-liquid-spacetime-slippery-superfluid.html
"If spacetime is a kind of fluid, then we must also take into account
its viscosity and other dissipative effects, which had never been
considered in detail".
Liberati and Maccione catalogued these effects and showed that viscosity
tends to rapidly dissipate photons and other particles along their path,
"And yet we can see photons travelling from astrophysical objects
located millions of light years away!" he continues. "If spacetime is a
fluid, then according to our calculations it must necessarily be a
superfluid. This means that its viscosity value is extremely low, close
to zero".
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.151301
