We can only guess as to the properties of anything prior to measurement.
Particles can become entangled with each other, which suggests that measuring one particle tells you the state of the other entangle particle.
Either the particles are communicating with each other (which contradicts the idea that nothing can travel faster than the speed of light) or that the particles themselves do not have definite properties.
Does this validate the notion that we live in a simulation?
If reality were just a program, giving definite properties to every single particle in the universe and keeping track of each of them as though they were individual objects would take nearly infinite computing power.
If we gave them properties on the fly (when information is observed), it would take infinitely less computing power.
What’s your take on it?