ELI5: Explain Like I'm 5

subjectivism

Subjectivism is when you believe that what is right or wrong, true or false, good or bad depends on what you think or believe. For example, if you believe a certain type of food is the best food in the world, then that would be your opinion and no one else could tell you otherwise. It is not about what is true in general, but what is true for you.