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"Unlikely things happen all the time." This is the mantra of the anti-design movement. However, there is an absolute physical limit for improbable events to happen in our universe. The universe contains only 1o80 baryons and has only been around for 13.7 billion years (1o18 sec). Since the smallest unit of time is Planck time (10-45 sec) the lowest probability event that can ever happen in the history of the universe is:1/1089 x 1/10-18 x 1/1o49 =1/1o143So, although it would be possible that one or two constants might require unusual fine-tuning by chance, it would be virtually impossible that all of them would require such fine-tuning. Some physicists have indicated that any of a number of different physical laws would be compatible with our present universe. However, it is not just the current state of the universe that must be compatible with the physical laws. Even more stringent are the initial conditions of the universe, since even minor deviations would have completely disrupted the process. For example, adding a grain of sand to the weight of the universe now would have no effect. However, adding even this small amount of weight at the beginning of the universe would have resulted in its collapse early in its history.
"Unlikely things happen all the time." This is the mantra of the anti-design movement. However, there is an absolute physical limit for improbable events to happen in our universe. The universe contains only 1o80 baryons and has only been around for 13.7 billion years (1o18 sec). Since the smallest unit of time is Planck time (10-45 sec) the lowest probability event that can ever happen in the history of the universe is:
1/1089 x 1/10-18 x 1/1o49 =1/1o143
So, although it would be possible that one or two constants might require unusual fine-tuning by chance, it would be virtually impossible that all of them would require such fine-tuning. Some physicists have indicated that any of a number of different physical laws would be compatible with our present universe. However, it is not just the current state of the universe that must be compatible with the physical laws. Even more stringent are the initial conditions of the universe, since even minor deviations would have completely disrupted the process. For example, adding a grain of sand to the weight of the universe now would have no effect. However, adding even this small amount of weight at the beginning of the universe would have resulted in its collapse early in its history.
