Hi, I realize that the present tense is most commonly used tense in conversations, but sometimes I find it really odd. For example, consider the following sentence. Though the process has occured a long time back the speaker states it as if it is a process that keeps occuring. #2 is my sentence, also in the present tense. I get confused as to how the speaker can justify the present tense in #1. 1. Darwin's theory of evoluation states that we are descended from the ape family. 2. XYZ thinks that we are controlled by aliens. Thanks.