What evidence exists for parallel universe discoveries and how might they be detecte

[JohnB]

The concept of parallel universes has moved from science fiction to serious scientific inquiry. With recent parallel universe discoveries and theoretical advances, I'm curious what evidence actually exists. Some researchers suggest that quantum superposition evidence might hint at multiple realities, while others look for anomalies in cosmic microwave background radiation. What do you think about the simulation hypothesis evidence and how it might relate to parallel universe discoveries? Are we getting closer to experimental verification?