Ok, you have changed impossible to unimaginable, but have you really changed the problem or its outcome?

Try to imagine a really big force, an unimaginable one must always be bigger than this. This is the same as the way we think about infinity, because even your unimaginable force must have a bigger unimaginable force - the "my imagination is bigger than yours" game.

So how is an unimaginable force different from an infinite force? We still come back to an impossible situation.

Where do you go from here?