I honestly don’t believe the idea of immortality is up to debate at this point. It’s basically a guarantee.

Think about the human body. Eventually, every single organ (besides the brain) will be able to be artificially made or at the very least, taken from another similarly built animal (like pigs) to be transplanted into us if we need a back up organ.

We have creams, lotions, and moisturizers that are a step in the right directions in knowing what works in keeping the skin tight and smooth. Eventually, our tap water will literally be the fountain of youth, caking us in the chemicals needed to keep our skin youthful every morning when we go to take a shower.

Ideally at this point of total organ replication (excluding the brain) and skin rejuvenation, we would also be able to cure/eradicate all cancers and diseases.

The only issue that I believe will be the hardest to solve is the brain. The one thing that truly makes us all unique. Once we can reverse the process of dendrite-degradation, which is what increases the chances of diseases like Alzheimers and dementia, then we can really be immortal.

Aging at every level of the human body can be stalled. It’s just going to take a long time to get there.