It's not impossible: https://www.quora.com/Will-the-star-Betelgeuse-become-a-black-hole
It's not impossible: https://www.quora.com/Will-the-star-Betelgeuse-become-a-black-hole
It's not impossible: https://www.quora.com/Will-the-star-Betelgeuse-become-a-black-hole
iirc its too small to become a black hole