Are multiverses real? An astrophysicist explains why it depends on how you define 'real'

"The idea of a multiverse - a hypothetical collection of all possible universes - is one that science fiction fans love to explore. But does the multiverse actually exist?"

"The most immediate definition of 'real' might be that you can see and touch it. My lunch is real in this sense, because I can taste it and you can hear me chewing it."

"So, you can ask two versions of the question of whether the multiverse is real. One: Can you see, hear, touch, smell or taste it? Two: Even if you can't, is there any evidence of its effects?"

"While direct sensory perception of the multiverse is unlikely, researchers consider the possibility of indirect evidence through observable effects."

The multiverse concept refers to a collection of all possible universes, sparking interest in both science and philosophy. Defining 'real' can vary; it may involve direct sensory perception or indirect evidence. While direct sensory perception of the multiverse is unlikely, researchers consider the possibility of indirect evidence through observable effects. The discussion of the multiverse intertwines with quantum mechanics, raising questions about its existence and the nature of reality itself.

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