Do any of you grasp what I’ve solved here?
Wave packets are not physical despite the connotations. They are not just for light, matter waves can be a wave packet also. Duality of a free particle is many plane waves to a single wave. It’s like going from digital to analog (the many layers of infinite coherent quantum fields are digital/virtual/holographic). Decoherence triggers many plane waves to compile into a single wave packet. The quantum fields don’t use space and time, they are filled with coherent plane waves. Compiled wave packets are restricted via spacetime.
Decoherence and Wave collapse are not the same thing. Wave collapse is when a particle hits a physical object and dead stops. Decoherence is a particle being measured in flight and allowed to continue moving on its path. Wave collapse does not influence the state of the wave in flight. The measurement problem is not a problem anymore.
Coherence is the state a wave has to be in to perform quantum weirdness events (superposition, entangle, and tunnel).