The idea of the multiverse encompasses a vast range of possibilities, and there are various theories and speculations regarding its nature. It's important to understand that our knowledge of the multiverse is still limited, and many aspects of it remain speculative.
In the concept of the multiverse, different universes may have different properties, including their physical laws, dimensions, and even the existence of intelligent life or advanced civilizations. It's conceivable that within this vast array of universes, there could exist a universe where beings have developed the ability to communicate or interact with other universes in the multiverse.
However, it's crucial to note that the exact nature of such interactions and the feasibility of informing or influencing all other universes are highly speculative and currently beyond our scientific understanding. The laws and limitations of physics within each universe would determine the possibilities and constraints of such interactions.
As for the idea of a universe that could "kill" or affect all other universes, it again depends on the specific properties and laws of physics within each universe. It's challenging to speculate on the potential capabilities of a universe that could exert influence or pose a threat to other universes, as it would require an understanding of the physics and mechanisms that govern the multiverse as a whole.
Ultimately, the multiverse concept is still an area of active scientific investigation and theoretical exploration. While there are fascinating ideas and hypotheses, many details and possibilities remain uncertain, and further research is needed to gain deeper insights into the nature of the multiverse, if it exists.