Traveling through the multiverse: Roads between worlds

For as long as we can remember, we have believed in the illusion of a single reality. A single world, a single time, a single life that runs in a straight line, without detours or alternative paths. But the truth is different. It is more vast, more disturbing. Because reality is not a solid block, but an infinite ocean of possibilities, a web of paths that cross, diverge and replicate to infinity. Some call them parallel universes. Others, alternate dimensions. In reality, they are both and neither at the same time. They are not mirages or figments of the imagination: they are as real as the world you think you live in right now. And if you've learned to see the cracks in the fabric of the known, if you've ever felt that something doesn't quite fit, then you've already taken the first step. I was like you once. I believed in one world, in one destiny. I believed that life was governed by unbreakable rules: gravity, time, causality. I believed in the past and the future, in memories and certainties. Until I saw the first crack. It wasn't a blockbuster event or an immediate revelation. It was a tiny detail, insignificant to anyone who wasn't paying attention. A reflection that took too long to mimic my movement. A face in a crowd that I could have sworn I'd seen somewhere else, some other time. A song playing on the radio with different lyrics than I remembered. I thought it was a mistake of memory, a trick of the mind. But the more I ignored it, the more frequent it became. Faces changed subtly. Objects moved from place to place without anyone touching them. Phrases I hadn't said came out of my mouth as if someone else was whispering them in my mind. And then, one night, the inevitable happened. I was walking down a street I had walked a thousand times. The same corner store, the same flickering streetlight. But as I walked through a door-any door-I found myself in a place I didn't recognize. Everything was in its place, but different. The lights had different hues, the voices in the distance spoke in a language that shouldn't exist in my city. And worst of all: the stars above me were not the same. It was not a dream or a hallucination. It was real. I had crossed over without realizing it, without wanting to. I had become a traveler between worlds. At first, I tried to go back. I looked for the same door, the same steps, but nothing worked. The universe would not return me home because my home no longer existed in one place. And so my journey began. I discovered other travelers. Some had been exploring the paths between worlds for centuries, collecting stories, maps and warnings. Others had been trapped, unable to find their way back. Some had changed so much that they no longer remembered where they came from. I learned that every universe has its own rules. Some are almost identical to ours, with small differences: a different color in the sky, a historical event that never happened, a city that should not be where it is. Others are chaotic, fragmented, with laws of physics that defy logic. There are worlds of shadows and reflections, where time moves forward and backward without control. Places where the concept of individuality does not exist, where each being is part of a single consciousness. Universes where humanity never evolved, where life took forms that defy imagination. But not all worlds are welcoming. There are places from which no one returns. Echoes of collapsed universes, where time crumbles and matter fall apart. Places that exist outside any timeline, where a minute can be an eternity or disappear in an instant. And there is something else. Something that watches us from the edges of the multiverse. Something that moves between the cracks, that whispers in the gaps between worlds. Something that shouldn't exist... but does. This book is a testimony.