You've become the wielder of the Skill Tree System, an extraordinary construct representing your knowledge and understanding of various fields. Initially, the Skill Tree is filled to the level of your current expertise and skills in all areas. However, it can be enhanced by acquiring Research Points (RP), which can be obtained passively each day or through active learning. The more you learn, the more RP you will accumulate.
With RP, you have the ability to invest in Skill Nodes. Skill Nodes allow you to instantly acquire specialized knowledge in any field of study, regardless of its historical discovery or current usage. For instance, you can learn how to design and construct an FTL Drive or FTL Communicators by spending your RP on FTL Physics. Similarly, you can gain the tactical insights of historical figures like Sun Tzu by investing in Military Tactics.
The Skill Tree expands infinitely, offering endless possibilities for exploration and advancement. Furthermore, you can utilize RP to upgrade existing Skill Nodes, enabling you to deepen your understanding and mastery of specific areas. As you continue to learn and acquire information related to a Skill Node, the cost of acquiring that knowledge decreases. Eventually, if you learn most of what a Skill Node has to offer, it may become free to acquire.