To put this a little more precisely: the presence of chaos in a system means that for any given accuracy with which we specify the initial conditions, there will eventually come a time at which we lose all ability to predict how the system will behave, but it is still true that however far into the future we want to be able to predict the behavior of a physical system governed by Newton’s laws, there is some degree of accuracy with which a measurement of the initial conditions would allow us to make this prediction.
