From what I have read , being specific really does have its benefits but I believe there are some to , being vague. When someone says something vague , the other person will more or less try to fill in the blanks by providing speculation. Sometimes, precision is dangerous, a closed door keeping us from imagining new possibilities. Vagueness is that door flung wide open, a reminder that we don’t yet know the answer, that we might still get better, that we have yet to fail. Precise info for some things such as data may be useful but if the results are just hampering you’re progress,it’s better to be left unknowing.