Hence, it has been observed "when energy particles move through mediums faster that the speed of light", supposes that there is a speed FTL.
the speed of the light beam on the emerging beam would then be slower than light speed due to the lost energy.
The Big Crunch theory is just one of many possible scenarios for the end of the universe. While it is a plausible explanation based on current scientific understanding, it is not certain that it will actually occur. Other theories, such as the Big Freeze or the Big Rip, are also being considered.
One of the main pieces of evidence for the Big Crunch theory is the observation that the expansion of the universe is slowing down. This suggests that the gravitational pull of all matter in the universe will eventually cause it to collapse back in on itself. Additionally, the abundance of dark matter in the universe also supports this theory.
The exact timeline for the Big Crunch is uncertain, as it depends on the rate of expansion and the amount of matter in the universe. Some estimates suggest it could happen in billions of years, while others predict trillions of years. However, it is important to note that the universe is constantly changing and new discoveries may alter these predictions.
If the Big Crunch does happen, it would result in the end of the universe as we know it. All matter and energy would be compressed into a single point, known as a singularity. It is impossible to predict what would happen to us at that point, as our current understanding of physics breaks down in such extreme conditions.
There is currently no known way to prevent the Big Crunch from happening. The laws of physics dictate that the universe will continue to expand and eventually collapse back in on itself. However, it is always possible that new scientific discoveries or advancements could change our understanding of the universe and potentially alter this outcome.