There’s a certain thrill to discovering something that we don’t know. Some genealogists are constantly on the hunt for something “new” that they neglect to revisit those conclusions that were reached years ago, were taken as truth based on a relative’s statement, or came from a document that “had to be correct.”
Failure to revisit can be a mistake. That mistake is how some mistakes get passed down and shared with future generations. Even if revisiting does not uncover errors, additional information can be obtained and a greater picture of the family who was “already known” emerges.
Don’t forget there is a thrill of discovery in finding something is incorrect as well. The thrill is lessened when it was your own mistake. Those should be embraced as well–as opportunities for growth.