What are the current theories about travelling at the speed of light?

Many people believe it is impossible to travel at the speed of light while others argue that with the right technology it may be possible. The speed of light is the fasted recorded speed known to humanity. Light travels at three hundred million meters per second. If we were able to travel at such a speed, the progress of uncovering the universe would become slightly easier, and we will be able to travel far distances between us and other planets, but there may be some side effects that will affect us for the long run if we were able to travel at such speed. With technology upgrading and scientists surely there will a conclusion about the theory of being able to travel at the speed of light…right?

As far my knowledge of physics goes I don’t believe that time dilation will affect humans when travelling at the speed of light. Time dilation is an actual difference of elapsed time between two events as measured by observers either moving relative to each other or differently situated from gravitational mass. This may sound complicated but basically it is a physics concept about changes in the passage of time as out in space-time is measured differently wherever you go, you could age quicker or slowly basically depending where you are. For example, if you were based on the International space station, you would have aged slower relative to everyone on Earth as due to time dilation will in a way travelled into the future sort of. This is what many people believe could happen when travelling at the speed of light but laws of physics show that’s not the case and that time dilation has no effect travelling at that speed. But the only way to be certain is for that theory to be put to the test and see what happens right?