I was provided with a link to Einsteins View on the compatibility of an aether with relativity on another site. It has made me think a bit further on the nature of the proposed aether. Einstein says that for the aether to be consistent with Relativity it can not be thought of as existing of individual particles in relation to which motion can be measured. But then how can it have the needed properties for electromagnetic radiation and gravity to exist? Logic dictates that everything is infinitely devisable, for when you choose to stop dividing after any number of divisions you could still in principle divide to yet another level. So if you take it to the limit (pun intended) mathematically, you will be left with a particle with dimensions that tend toward zero.
The seperation between these particles would also tend towards zero, but slight variations in these seperations would allow for any kind of 3D dynamics on the makro scale.
The question is: How would the fluid dynamics of these particles (strings maybe) be affected when the particles and seperations are on a sub Planck length scale?