The Tests in the IT development

Have you ever felt that the initial conditions are sensitive and that you can not predict anything? When celestial mechanics eludes you. A bit like the weather. It happens to all of the check and say late in the day that nothing went as planned. He should be fine, but you would still have to take your umbrella. And the butterfly effect, this tiny change in initial conditions that lead to unpredictable results. But do not we have the ability to predict the future from a present state?

The answer is certainly not, because it is virtually impossible to predict the multitudes of small causes and especially the effects. The only solution would be to have the ability to test the future to go back if necessary and try something new. To make a small correction in our actions and see if it influences the future.