The Aether fluctuations arise as a density fluctuations of colliding particles, i.e. by the same way, like the particles in gas, which are underlying the Boltzmann distribution.

This is another tricky question: what makes the particle and numbers countable and how they differ from waves, which cannot collide mutually. By AWT the only source of inertia is the gradient of Aether foam density. You can make the particles just by shaking of Aether foam, for example by using of the Java applet here.

[IMG]http://superstruny.aspweb.cz/images/fyzika/aether/dynamic_foam.gif