string theory

String theory is like the world’s most complicated cat’s cradle game. Sure, it’s super impressive and complicated, but it’s still just a bunch of strings. Scientists have been trying to make sense of it for decades and they’ve come up with some pretty wild ideas, but it’s still a mystery. It’s like they’ve found a bunch of pieces to a puzzle and they can’t figure out what the picture is supposed to look like. To give you an idea of how complex it is, some people think that string theory could explain why our universe is the way it is—even why it exists! Fun fact: the theory suggests that there could be 11 dimensions, not just the three we experience in our day-to-day lives.