Dr. Andrews explains the benefits of interbreeding, killing off the older individuals of a species, and the dangers of natural products. Dr. Andrews also explains why CRISPR/Cas9 is just a well-branded idea for an old technology of gene editing.
What if the stem cells, on a much slower level, are also undergoing gradual genetic mutations? That is the invisible elephant in the room.
CRISPR-Cas is not like a human finding cutting and splicing an old fashioned movie reel…it depends on bacterial-derived micro-machines with an inherent error rate.