The answer is no, it is not possible to make exact predictions about such complex systems.
But for exact prediction, 10-14 days is the limit and we're stuck with it.
Second, any model that described the whole universe in detail would be much too complicated mathematically for us to be able to calculate exact predictions.
One of the big problems is that science, naturally, is opposed to the notion of exact predictions.
Hipparchus is considered to have been among the most important Greek astronomers, because he introduced the concept of exact prediction into astronomy.
The exact prediction of the next pattern-crash.
His theory makes exact predictions about everything everywhere (at least about gravitational matters), but scientists can only make approximate measurements of some things somewhere.
After that we can perform more exact predictions, and once things start, their cloaks will not much matter.
It strikes me as impossible at the moment, though, to make exact predictions about the expected effects on employment.
So, knowing the genome of an organism does not give an exact prediction of its phenotype.