Can we really travel on time? The short answer is yes! – yes, that’s right. We all have the ability to jump forward in time, even if we don’t realize it. If you want to jump into the future, can you just go to sleep and wake up in a few hours? Of course it’s cheating, we want to be able to go back and make those stupid mistakes we made years ago. Who doesn’t want to be able to go back and talk to themselves when they were 15? Tell them not to make the mistakes you’ve made, or they’ll prefer to travel 500 years in the future and see those flying cars they promised us in 2000.
In fact, there is no law on physics that prohibits time travel. This is true, according to all the laws of physics, which we know it is perfectly reasonable to travel in a timely manner at our discretion. But as they say, with a superpower, it’s a big responsibility. Time travel is a very dangerous effort with devastating consequences, and also with paradoxes.
What if, for example, he traveled on time and prevented World War II? Sounds like a great idea, doesn’t it? Countless lives will be saved, I will be welcomed as a hero! Not necessarily. Even if I had saved a life, I would have destroyed others. All the technologies we rely on today, developed during the war, such as jet engines and nuclear energy. In fact, the world map can be completely different. We could be worse off leaving history behind.
Another known paradox of time travel is the paradox of a grandfather who says that, say, for example, I travel to an era before my father was born and prevent my grandfather from getting to know my grandmother. My parents wouldn’t know each other, so I would never have done it. How can I get back in time so they don’t meet grandparents?
So we can see that time travel can be a bad idea, but let’s say we really want to go back in time, how are we going to do it? First, we need to understand how time works.
Time is something we all know very well and we all know what it is, but we still can’t see it, touch it, it seems we can’t communicate with it in any way, we can just watch it. Isaac Newton thought time was stable and never moved away, which would make it impossible to travel through time. Even Einstein thought it was impossible, but his equations made it possible. Einstein understands that space and time are inexplicably connected to what he calls “time and space.” In theory, if I distorted space with something as powerful as a black hole, I wouldn’t be distorting time. While this may seem true and scientists continue to explore their possibilities, the real possibility of time travel seems to be in their other theory; Relative. In fact, time travel with relativity is not just a theory and is actually done several times! You may think I’m crazy, but the secret seems to work very quickly.
Of course, this scenario will never happen in real life, as I have already said that we can not travel faster or faster than the speed of light. In fact, you will need more than countless fuel reserves to travel faster than light, which is impossible, of course.
So basically, astronauts are actually passengers, too. Sergei Krekalev, the current record holder for the longest time spent in space (about 804 days or 2.2 years) is actually half a second behind the rest of the world. In addition, scientists have calculated that if we can rotate around the Earth in seven full years at 99.99% of the speed of light, we will land again on Earth in 500 years. This effect is known as stretch time. What an amazing realization! After all, time travel can be at your fingertips. The only problem is to invent a machine or car that can drive very quickly. Unfortunately, it looks like he’s out of our reach now. In fact, we need the power of a full star to get to that speed.