“If you wish to improve, be content to appear clueless or stupid in extraneous matters–don’t wish to seem knowledgeable. And if some regard you as important, distrust yourself.” ~ Marcus Aurelius, Meditations, 13a
Even in this information age, we don’t know everything. And that’s good. Recognizing that you don’t know what you don’t know is a good thing. That leaves room to grow. And if you don’t know something these days, there’s always Google or YouTube. Now you can focus on what’s important. Besides, nobody likes a know-it-all. They are annoying as hell. At least any party I’ve been to where there was a person who knows everything about everything (or so they think), nobody is ever gravitated to that person. In fact, people do everything in their power to avoid eye contact.
There is a balance between not staying on top of everything, and educating and bettering yourself. Concentrate on the things that are important to you. When you realize that you don’t have the answers, there are plenty of resources to discover the answers.