nothing exists...

What has been exists no more; and exists just as little as that which has never been. But everything that exists has been in the next moment. Hence something belonging to the present, however unimportant it may be, is superior to something important belonging to the past; this is because the former is a reality and related to the latter as something is to nothing.

A man to his astonishment all at once becomes conscious of existing after having been in a state of non-existence for many thousands of years, when, presently again, he returns to a state of non-existence for an equally long time. This cannot possibly be true, says the heart; and even the crude mind, after giving the matter its consideration, must have some sort of presentiment of the ideality of time. This ideality of time, together with that of space, is the key to every true system of metaphysics, because it finds room for quite another order of things than is to be found in nature.

Schopenhauer, Arthur, "The Emptiness of Existence," Essays of Schopenhauer, eBooks@Adelaide


...then exists and after that doesn't exist again?