permeability of the surface tension is important here. But I can
   definitely see how it would work well. Imagine if you will,
   permanent holes in a liquid which is being used as a cooling
   mechanism for 3D circuitry. You keep the necessary air gaps for
   insulation while ALSO having a heat-sink nearby (the liquid),
   which would allow for more complex circuitry to be contained in
   a smaller space at higher temperatures, perhaps... I dunno. Of
   course the air wouldn't have to be air, nor the liquid water of
   course.   http://phys.org/news/2015-11-porous-liquid.html