Originally Posted by MartialDev
As a society, we do not allow "subjective reality" types to build our bridges, fly our planes, or practice surgery. The people who depended on them would die.
People do die from collapsed bridges, plane crashes, and surgery. An objective belief system doesn't eliminate those risks.
For a subjective belief system to be accurate, it must be congruent with your experience of reality. A genuine subjective belief system doesn't make you any less capable of functioning in the physical world. Overall it makes you more capable by reducing fear and encouraging more action.
Imagine playing a computer game. Does the knowledge that it's just a simulation prevent you from learning the rules of the game and becoming an accomplished player? Of course not. In fact, you may be more likely to become a skilled player vs. someone who is totally convinced the game is real, especially if the game involves risk.
The major difference between subjective and objective reality is a matter of perspective. There's nothing to stop someone with a subjective belief system from mastering the rules of the physical universe. It's much like deciding to master a computer game -- it takes a lot of practice.