The world is getting more and more complicated. There are many topics you might wish you knew more about, but which you'll never even have the opportunity to explore. If you Google almost any topic, you'll be deluged with information.
The Core Knowledge External Brain is based on many hours of searching and contains a number of "mini-brains" on specific sub-topics that will help you organize information you can use in your daily life and which will allow you to explore dozens of topics in minutes.
External Brains are available online, but downloading them to your laptop or mobile device makes them a lot easier and faster to use.