He became a scheduling black hole, missing meetings and deadlines as if they were an insult to the fabric of space/time itself.
I know the meanings of the words, I know the phrases "black hole" and "fabric of space/time" refer to the Einstein Relativity Theory. But I can not get the meaning of the sentence.
So, Could you please explain it to me?
The fuller text is:
The surgeon cut the tumor out, and Elliot went home. He went back to work. He went back to his family and friends. Everything seemed fine and normal. Then things went horribly wrong. Elliot’s work performance suffered. Tasks that were once a breeze to him now required mountains of concentration and effort. Simple decisions, such as whether to use a blue pen or a black pen, would consume him for hours. He would make basic errors and leave them unfixed for weeks. He became a scheduling black hole, missing meetings and deadlines as if they were an insult to the fabric of space/time itself.