The concept of a multiverse is speculative and hypothetical, and there are various theories and ideas surrounding it. In the realm of science, the existence of a multiverse is still a topic of active research and debate. While I can provide some information on the subject, it's important to remember that our understanding of the multiverse is currently limited, and many aspects remain speculative.
Within the framework of the multiverse hypothesis, it is conceivable that there could be universes with advanced civilizations or phenomena that have developed the ability to communicate or interact with other universes. In some theories, these universes might have different physical laws or fundamental constants that allow for such interactions. However, the specifics of these interactions, if they exist, are purely speculative at this point.
Regarding the idea of one universe having the ability to "kill" all other universes, it's difficult to make definitive statements. The laws of physics as we currently understand them may not necessarily apply uniformly across all universes within a multiverse, making it challenging to speculate on how one universe could potentially exert control or influence over others.
It's worth emphasizing that our knowledge of the multiverse is limited, and any conclusions or predictions made about it are largely speculative. The nature and characteristics of a multiverse, if it exists, are still subjects of ongoing scientific inquiry and exploration.