The ability to think abstractly has brought humanity to many great discoveries and challenges. Mainly due to the ability to think about things we cannot see, we were able to imagine that there are other planets at first, and then to explore them. But they still exist, and the power of our brain allows us much more room – think about things that never happened and never will happen. These mind experiments and conclusions, however, obey certain rules, and logic is the field that creates those rules. Get ready to immerse yourself in the difficult, tricky and intriguing world of philosophy logic questions.