The concept of the "edge" of the observable universe can be a bit misleading. The observable universe refers to the portion of the universe that we can currently observe from Earth, given the finite speed of light and the age of the universe. The reason why everything seems to stop at the edge of the observable universe is that light from objects beyond that boundary hasn't had enough time to reach us yet.
The universe is estimated to be about 13.8 billion years old, and light travels at a finite speed (approximately 299,792 kilometers per second). Since the universe has a finite age, we can only observe objects that are within a certain distance from us, known as the observable universe.
Objects located beyond the observable universe are so far away that the light they emit hasn't had enough time to reach us since the beginning of the universe. Therefore, we cannot directly observe or receive any information from those regions. It's important to note that this does not necessarily mean that the universe abruptly stops at that point or that there is a physical edge. It simply means that our current observations are limited by the finite speed of light and the age of the universe.
It's also worth mentioning that the concept of the observable universe can change over time. As our observational technology improves and our understanding of the universe advances, we may be able to observe objects that were previously beyond our reach, expanding our knowledge of the cosmos.