The term "singularity" has different meanings depending on the context in which it is used. In general, the concept of singularity refers to a hypothetical point in the future where technological progress becomes so rapid and profound that it fundamentally changes human civilization or even surpasses human intelligence.
If you're referring to the technological singularity, which is often associated with the development of artificial superintelligence, it is a speculative future event, and there is no consensus on what existed before it. The singularity represents a theoretical point at which our ability to predict or understand the consequences of technological advancement breaks down, making it difficult to speculate about what came before it.
In a different sense, the term "singularity" can also refer to the mathematical concept of a singularity, which is a point where a function or equation becomes undefined or breaks down. In this context, there is no notion of time or what existed before a singularity.
It's important to note that the idea of a singularity, especially in the context of technological advancements, is a subject of speculation and debate among futurists, scientists, and philosophers. Therefore, any discussion about what existed before the singularity would be purely speculative and based on hypothetical scenarios or personal interpretations.