How do you know the universe was not created a few minutes ago?

 

    
The universe is the giant area of space that we live in, which is observable. Anything past our universal border is not in our universe. People do say the universe is constantly expanding, but there is no proof of that, as the "imaginary" or, maybe not imaginary border at the "end" of our universe. But, how do you know that the universe even exists? Were you even in it last week? Did last week even exist?


Last week, the universe could have been created, and you do not have proof against it. All of your knowledge and memory could have easily popped into existence a few seconds ago, tricking you into thinking you have existed for longer than you think. This is likely, but also unlikely, it is a 50/50 chance. A reason that this is unlikely is, there are a lot of things that do not make sense in our universe. Like, why does matter attract matter, resulting in gravity? This exists in our universe, but can it exist in a different universe? Not really, or most likely not. As we said before, a universe is basically just a portion of space with imaginary borders, maybe not imaginary, and wouldn't make sense for a different portion of space to have completely different laws of physics.


Many well-known scientists did a great job explaining that matter attracts matter, but not all of them did a good job explaining why or how because we simply still do not know after many decades, and likely will not know for a while. We, Earthlings, are pulled down to the ground because of gravity, which is caused by matter attracting matter. Now, you do not need a planet's gravity to have "gravity", you can simulate it. An example is, if you have a rod in space, and have a sphere on each end of the rod, and spin it, there will be gravity. It is not really "gravity", but it is artificial gravity, and if you were small enough to fit on the sphere, and you get the spin at just the right velocity, it will not really feel any different from earth gravity. This method might be able to be used in a place without our laws of physics, but that is too unlikely.