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Nothingness is a philosophical concept that refers to the total absence of something, the absolute lack of any form of existence, substance or reality.
It is the state of non-being, of lacking any attribute or characteristic. Although it may seem an abstract concept, the idea of nothingness has been the subject of reflection and debate throughout history.
In different philosophical traditions, nothingness can be interpreted in different ways. Some philosophers consider nothingness to be simply the absence of something, a void or empty space.
Others see it as a negative and abstract idea that can only exist in contrast to existence itself, and it has also been discussed whether nothingness can be conceived of as an absolute state or whether it is always related to something that is missing or has been eliminated.
The idea of nothingness has also been explored in the field of physics and cosmology, for example, in quantum physics, the question has been raised whether the absolute vacuum can be considered as true nothingness or whether it potentially contains particles and quantum fluctuations.
In cosmology, it has been debated whether the universe could have arisen from nothing through processes such as cosmic inflation or the Big Bang.