In The Matrix Reloaded (2003), Neo learns that Zion will be destroyed:
Neo: You won't let it happen. You can't. You need human beings to survive.
The Architect: There are levels of survival we are prepared to accept. The relevant issue is whether or not you are ready...to accept the responsibility for the death of every human being in this world.
How to understand "whether or not" here if there are no two clauses in the sentence?