I never said it was impossible. I meant that based on the fact DNA destabilizes over time even without an external destructive force, that is, it has a half-lif

I never said it was impossible. I meant that based on the fact DNA destabilizes over time even without an external destructive force, that is, it has a half-life, it's supremely unlikely useful genomes will ever be derived from 50+ million year old fossils.