Do physical singularities really exist in nature?

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FYI: "Q: What are singularities? Do they exist in nature?"

https://www.askamathematician.com/2012/09/q-what-are-singularities-do-they-exist-in-nature/#:~:text=Physicist%3A%20Singularities%20are%20just%20artifacts,of%20are%20black%20hole%20singularities.