Time starts with the Big Bang and goes on forever. Theoretically, you can travel backwards along the time axis if you can run at a speed faster than the light. I simply don’t believe that. It is a mathematical trick for self-entertainment, not for my daily life.
Although in particle physics time is measured in milliseconds or smaller, the second, arbitrarily set by ancient scholars, is the smallest unit we human beings can physically sense it. Unfortunately, every day has only 86400 seconds, no less, no more.
Thus, it is a secret art to manage this limited time that God mercifully allocates for us. I have tried numerous ways and used all sorts of gadgets to master this art. But I am still the old me. Time is not a concrete concept in my mind.
Maybe, something is wrong within my skull. No, I am not scratching my head.