Comment by shmageggy
This is (one of the many) reasons why I care primarily about biodiversity and preventing as many human-caused extinctions as we can. Those are a permanent loss to the beauty and complexity of the universe built up over millions of years, and they are permanent and irreversible.
Not everything that’s been permanently lost is bad, that’s just the nature of our reality. This too shall pass.
New things arise from the ashes.