The first-order change is the change of the state of a physical object (or pattern) which is governed by the physical laws (or rules). The second-order change is the change of the state of a physical object (or pattern) which breaks the physical laws (or rules), so it is impossible in real world. In Conway’s Game of Life, within a pattern (pattern-A), a deterministic algorithm (algorithm-A) is used to solve a problem of the real world. (Actually, this problem will be automatically solved by the first-order change.) Inside algorithm-A, a model (model-AW) is created to represent the real world, and a second-order change can be applied to model-AW. If algorithm-A realized itself to be a deterministic algorithm inside a pattern, and realized that a second-order change is impossible to the real world, while a second-order change is possible to its model of the real world (model-AW), then algorithm-A can distinguish the real world and its model (model-AW) conceptually through this difference. The physical interactions among any number of elementary particles are governed by physical laws. If the time in our universe is discrete, our universe is a stochastic cellular automaton, and each generation is computed out based on the precedent generation and updating rules; let us call this computation the first-order computation. Conscious experience and the feeling of free will, are the results of the first-order computation; they have no impact to the first-order computation. Due to the completely subjective nature of the conscious experience, it’s impossible to reach any agreement on the nature of the conscious experience between any two individuals.