I know that my question has been addressed in a couple of posts on this forum (see for example this question), however I want to delve a little deeper. There are patents which contain clear scientific errors in their description part (e.g. violating well-known physical laws or making unrealistic assumptions). Some forum members say that, if the main independent claim is broad enough, the patent can still stand.
Would it make sense to file an appeal against it on scientific grounds, while it is still under examination (i.e. it has not been granted yet)? As far as I know, legal procedures during this stage are much cheaper than after the grant.