171- Existence, or Nothingness
Your discussion is on realizability and unrealizability, and existence and nothingness. Existence is an incontrovertible notion that cannot be denied; simply because you can perceive it with your senses. The main discussion should be on the nothingness or non-existence. Non-existence means nothingness. However, since nothingness is not a thing, then non-existence is basically out of the question. There is no "non-existence"; the universe is never in a non-existent state. Nothingness is a human-made construct and does not exist. Whatever there is, is existence. Therefore, when we take "the non-existence" out of the equation, what remains is one hundred percent existence. Indeed, it is nothing but one hundred percent pure existence.
Nothingness has no power to show off and to exist. Whatever power there is belongs to existence.