Relate dark matter to the development of the universe after the Big Bang theory, in 3 to 5 sentences speculate, on how the development of the universe would be different if there had been no dark matter

Dark matter is believed to play a crucial role in the development of the universe after the Big Bang theory. If there had been no dark matter, it is speculated that the universe would have developed differently. One possibility is that there would have been less gravitational pull, resulting in a slower expansion of the universe and a potentially different distribution of matter. Additionally, the presence of dark matter is thought to have influenced the formation of large-scale structures like galaxies, so the absence of dark matter may have led to a different arrangement and distribution of galaxies in the universe. The overall structure and evolution of the universe would be significantly altered without dark matter.