A thought has been bother me for a while. Is the universe expanding in the time dimension? Let me explain. The future does not exist yet, the future is a concept, an artifact of the human mind. The past (from the time perspective) don't exist anymore, yet we can see the evidence of its passage all around us. The present is a Limit between the future and the past and our place of residence in the universe. From the "present' we can look back into the past and we can expect the future. As time passes, the past acumulates behind the present, so it is expanding. Is this an artifact of my current understanding or a physical reality? My knowledge of math is only at the first few weeks of calc 1, so this concept might be completly wrong, but I found it interesting and worthy of being tested against people of more knowledge than me. I tried to be clear and concise but it could be a little vague.