According to our current understanding of physics, there is no instantaneous communication or simultaneous information exchange between distant parts of the universe, even at the quantum level.
The concept you mentioned, "simultaneity across the universe," suggests a form of instantaneous interconnectedness between all particles or regions. This idea is reminiscent of the concept of "spooky action at a distance" or non-locality, which is often associated with quantum entanglement.
Quantum entanglement is a phenomenon where two or more particles become correlated in such a way that the state of one particle is linked to the state of another, regardless of the distance between them. When an entangled system is measured, the measurement outcomes of the entangled particles can exhibit correlations that cannot be explained by classical physics.
However, it is important to note that quantum entanglement does not allow for the transfer of classical information faster than the speed of light. Even though the measurement outcomes of entangled particles may appear correlated instantaneously, they cannot be used to transmit information or establish a means of communication faster than light.
Additionally, the concept of "quantum foam" refers to a speculative notion at the very small scale of spacetime, where quantum fluctuations are thought to cause a turbulent and fluctuating nature of spacetime itself. It does not imply simultaneous information exchange or interconnectedness across the entire universe.
In summary, while quantum entanglement exhibits correlations that may appear instantaneous, it does not enable the instantaneous exchange of information. Our current understanding of physics suggests that there are limitations on the speed at which information can be transmitted, preventing true simultaneity or instantaneous communication across the universe.