Well put, though one nitpick: the three body problem is solved. It illustrates another case: even if a solution is known, it might not be practical. https://ww

Well put, though one nitpick: the three body problem is solved. It illustrates another case: even if a solution is known, it might not be practical. https://www.math.uvic.ca/faculty/diacu/diacuNbody.pdf https://www.math.uvic.ca/faculty/diacu/diacuNbody.pdf