In the previous post, I talked about how time travels could be awesome in different ways. The possibilities it would give us would be overwhelming but also, I talked about how time travels to the past would be theorically impossible due to, for example, the bootstrap paradox. But.. what about going forward in time? Well, I read different papers where they stated that if we met some specific conditions, we could actually travel to the future! These conditions would be, having a global train that could travel around the planet 7 times per second. This feat would mean that everything and everyone inside the train would have their time slowed. As impossible as it sounds, it isn't that crazy, according to Einstein's laws. Following the principle that says that nothing can travel faster than the speed of light, if we could somehow create a machine (such us our train) that could reach speeds close to the speed of light, the space-time would bend slowing everything inside the train therefore avoiding that a kid running inside the train could accidentally surpass the speed of light. The thing is that, if you were inside that train and you spent one week inside it, when the week was over, you would find a very different earth, since outside the train, a hundred years would have passed! Meaning that you would be one of the fist human beings that successfully travelled forward in time! Amazing, as well as mind-blowing right?

Do you believe in time travels? Recently I've watched a tv show about time travels on Netflix. I was wondering if it could actually be possible or if it's just a sci-fi thing and cannot happen in real life. It would be amazing to be able to jump back in time a couple of hundreds of years and see how the life was back then. Nowadays we have a good grasp on how the life could possibly be in past centuries but being able to witness it with our own eyes, that would be epic. Unfortunately, according to several papers that I've read about time travel, including some of the most well-known books of Stephen Hawkings, jumping back in time could bring a bunch of paradoxes that might compromise its existence. For instance, imagine that you travel back in time, to a day before you were born and kill your father, how could you be born in first place to be able to accomplish that task? If you kill your father, you will never be born, if you are never born you can't kill your father.. and so, we fall in an infinite loop. Going forward in time, on the other hand, could be more feasible. And I'll explain why in my next post.