"For every action there is an equal opposite reaction."

We have all heard about "Big Bang" theory which states, among other things, that the whole universe started out as an infinitely small point in space called a singularity and then "blew up" in a "massive explosion", thereby creating space where there had been none before and it has been expanding ever since (at an ever accelerating rate).

The book "Gravitation" by Wheeler, Thorne & Meisner is one of the more commonly referred to books in physics curricula as it explains in detail, the foundation of the standard model of physics.
On page 719, you find the current most accepted model of the known universe according to the standard model, a drawing depicting the big bang:
a guy blowing up a balloon with pennies glued to it. The balloon represents the universe expanding as it is being blown up and the pennies glued to the balloon represent the galaxies in the universe that move away from each-other as the universe balloon expands.

The big question that Nassim Haramein then asks about this picture is:
"Who's THAT guy?!"

If, for every action there is an equal and opposite reaction, then why have we not heard about "The Big Contraction"?

"For every action there is an equal opposite reaction." is one of the most foundational and proven concepts in all of physics. Therefore, if the universe is expanding then "the guy" (or whatever "he" (or she) is) blowing up that balloon, has to have some huge lungs that are contracting to be able to blow it up.

This a concept that Nassim Haramein began exploring when first creating an alternative unified field theory to explain the universe.
Nassim knew there had to be something fundamental and universal that was contracting in order to cause the expansion of the universe and that the standard model did not sufficiently account for this in it's model.

The thing that is contracting and allowing for the expansion of the universe is SPACE itself, not just curving as Einstein suggested, but curling like water going down the drain toward singularity at every point.

Scalar dimensions of singularity fractally embedded in a geometric, holographic space-time manifold: 

a holofractographic theory of everything...

in, The Resonance Academy