Sat 12 Jun, 2021 09:09 am
Time is certainly a very complex topic in physics, and there are people who believe that time does not actually exist. One common argument they use is that Einstein proved that everything is relative; so time is irrelevant. They say time is just a figment of our imagination. But others say there is no doubt that time does truly exist. It's a measurable, observable phenomenon. Physicists are just devided on what causes this existence, and what it means to say that time exists. Indeed this question borders the realm of metaphysics and ontology ( the philosophy of existence) as much as it does on the strictly empirical questions about time that physics is well-equipped to address. What some quantum physicists and Einstein tell us is that everything is happening simultaneously. There is no time for the universe at all.