Of course there is... Something is between us and the object. The interstellar medium could be plenty of very cold objects that could hide the object behind. Rogue planets and other enough dense structures that don't generate heat.
A interstellar eclipse.
You are saying that an interstellar eclipse or rouge planet could cause the star to physically vanish? To cease to exist? Because thats what you are arguing. The direct quote from the article is " there is no known physical process by which it could physically vanish" Sorry to actually pay attention to the words. I know thats not the Slashdot way.
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