Is the universe similar to Conways game of life? Let me elaborate. For us, a second is the unit of time and its a pretty short unit of time. But then at the atomic scale, a second is a pretty big unit of time. Everything we do is in the order of seconds or maybe milliseconds. But so much happens in that time at the atomic scale. It got me thinking about the smallest unit of time. If there is a such thing as the smallest unit of time then the universe works at that level. So such a unit of time does exist and its called the Planck time (http://en.wikipedia.org/wiki/Planck_time). If no unit smaller than that exists, then nothing happens in the universe in a time shorter than the Planck time. Does that mean the universe moves from one state to another in that unit of time? In other words, time as we know it actually results from the universe moving from one state to another? The game of life when simulated also moves from one state to another. There are rules governing these movements. Is the universe also something similar? Although far more complicated.