I know taking issue with Einstien is not a good idea - but I'll do it anyway. Learning - and putting as much relevent material in your working memory is beneficial to seeing the bigger picture and quick informed decisions. A collection of one line facts (what you get when you look something up) does not make wisdom. Sure, most of us have extremely small working memories, but it does not negate the benefit for learnin…
When you're in a meeting or conversing with someone who just knows things, the conversation moves so very much faster than if you have to guess or be vague due to a lack of knowledge.
I Google like crazy for answers about things, but I consider not knowing a failure on my part, and endeavor to learn the thing I had to google, so I don't have to "fail" again. I think everyone should think of this problem in a similar way, lest we fall into a habit of saying whatever we want and assuming we'll be corrected if we're wrong (or some other ill).