The term "everything" refers to the entirety of the universe, including all matter, energy, and space.
This is a complex and ongoing area of scientific research. The most widely accepted theory is the Big Bang, which suggests that the universe began as a singularity and has been expanding ever since.
There is currently no scientific evidence to suggest that there is an end to everything. The universe is constantly expanding, and it is unknown if it will continue to do so indefinitely or eventually reach a point of collapse.
As humans, our understanding of the universe is limited by our capabilities and technologies. While we have made great strides in understanding the workings of the universe, it is likely that there will always be more to discover and understand.
Some theories, such as the multiverse theory, suggest that there may be multiple versions of everything within different universes. However, this is still a highly debated and unproven concept in the scientific community.