The question of whether energy existed before the Big Bang or where it originated from is still a subject of active scientific investigation and speculation. Our current understanding of the universe has certain limits when it comes to describing the state of the universe before the Big Bang, as our current theories, such as the Big Bang theory, describe the evolution of the universe from an extremely dense and hot state starting from that event.
According to the Big Bang theory, the universe began as a singularity—an infinitely dense and hot state. However, the laws of physics, as we currently understand them, break down at the singularity. Therefore, our current models are unable to precisely describe the conditions before the Big Bang or the origin of energy in that context.
Some cosmologists and physicists propose speculative ideas and theories to address the origin of the universe and the concept of energy. For instance, certain theories suggest that the universe could be part of a larger multiverse or that the Big Bang may have been a result of a different physical process, such as a quantum fluctuation. However, these ideas are still speculative and subject to ongoing research and debate.
It's important to note that energy is a fundamental concept in physics, and it is conserved within closed systems according to the law of energy conservation. However, when it comes to the universe as a whole, its origin and the laws governing its behavior are areas of ongoing scientific exploration and investigation.