Is Time both Beginningless and Endless?

For the sake of this post, let's formulate *originalism* as the thesis that time had a beginning, i.e., time began to exist, and *finalism* as the thesis that time will have an ending, i.e., time will end or cease to exist.

**Argument Against Originalism:**

*1)* If time began to exist, then it did not always exist

*2)* If something did not always exist, there was a time before it existed

*3)* Therefore, if time began to exist, there was a time before time existed *(1, 2)*

*4)* There was no time before time existed

*5)* Therefore, time is beginningless *(3, 4)*

Likewise:

**Argument Against Finalism:**

*1)* If time will cease to exist, then it won't always exist

*2)* If something won't always exist, there will be time after it stops existing

*3)* Therefore, if time will cease to exist, there will be time after time stops existing *(1, 2)*

*4)* There won't be time after time stops existing

*5)* Therefore, time is endless *(3, 4)*