What kind of precision of prediction is required? Economics predict some things. For example if you print exceedingly a lot moneys, inflation will happen.

At the same time, physicists have problem telling precise location and momentum of the atom (at the same time; precisely).

(footnote: I love physics more than economics, but world is not perfect and sciences are not perfect. Except for math maybe https://xkcd.com/435 . Perfection and usefulness are not the same)