The question of what existed before the Big Bang is still an open topic of scientific inquiry. Our current understanding of the universe's history is limited to a fraction of a second after the Big Bang, as described by the Big Bang theory. The theory suggests that the universe was in an extremely hot and dense state known as a singularity, but it does not provide an explanation for what caused the singularity or what may have existed prior to it.
The concept of a singularity in the context of the Big Bang refers to a point of infinite density and temperature, where our current understanding of physics breaks down. It is not yet well understood how to reconcile the laws of general relativity (which describe gravity on a large scale) with quantum mechanics (which describes the behavior of particles on a small scale) in such extreme conditions.
As for the question of who or what created the compressed matter and energy, it is a topic that falls outside the scope of scientific inquiry. Science seeks to understand the natural processes and laws that govern the universe but does not address questions of metaphysics or the existence of a creator.
The evolution of the universe and the emergence of complex structures, including galaxies, stars, and life, are fascinating areas of scientific study. The processes that led to the current state of the universe involve a combination of fundamental physical laws, such as gravity, electromagnetism, and the strong and weak nuclear forces, as well as various astrophysical and cosmological phenomena.
The apparent complexity and intelligent design of the universe can be attributed to the interplay of these physical laws and the initial conditions of the universe. Over billions of years, structures and patterns have emerged through natural processes of gravitational attraction, fusion in stars, and the evolution of matter and energy.
It's important to note that the appearance of intelligent design in the universe is a subjective perception and not necessarily indicative of a deliberate plan or purpose. Scientists continue to investigate and explore these questions, seeking to deepen our understanding of the origins and evolution of the universe through ongoing research and observation.