I’m something of a quiet transhumanist, reveling in the ideas of elevating the human existence through the use of technology but staving off from raving about it whenever I get the chance. Whilst the idea of living longer appeals to many the idea of removing that inevitable end date, the one thing that has proved to be unavoidable for the vast majority of humanity to date, feels abhorrent to many and thus I leave the subject to one side. Still every so often a piece of science will make it into the mainstream media that brings with it some of the implications of transhumanist thinking and I feel compelled to comment on it.
A collaborative research effort between scientists in Australia and the USA has discovered a compound which, when administered to 2 year old mice, makes them appear to be as youthful as their 6 month old counterparts. The time line for the dramatic effects was also impressive with the reversal taking just under a week to occur. The compound acts on mitochondria, the energy generators of our cells, and appears to act directly on the muscle tissue of the mice. Whether that extends to other aspects of aging isn’t made clear (at least not that I can see, the article is behind a paywall) but the results have been impressive enough to warrant approval for human trials next year. Of course that means that a proper human model is some years off (with commercial production further still) but we should have some preliminary results in the not too distant future.
If this compound does pretty much exactly as advertised then it could mean a lot for our aging populace. Restoring muscle function is a key aspect in leading a healthier life as we age (which is why regular exercise is so important) and this could go a long way to making our golden years that much more enjoyable. At the same time it could also potentially help keep us in physical peak condition much longer, enabling us to be more active for an extended period of time. Whether this will translate to a bump in life expectancy and, more importantly, total longevity though will be something we won’t know for decades but it does sound promising.
Of course such life extension technologies always beg the question of how we’d deal with a larger population that’s living longer. Currently the world’s population is expected to peak around 2050 at roughly 8.3 billion, about 1.3 billion above what it is today. Technology like this wouldn’t immediately mean everyone suddenly starts living an additional 20~30 years, due to cost and adoption rates, so it’s far more likely that you’d see a gradual increase in average lifespan over the course of a couple decades. Indeed I believe this is true for all life extending technologies and thus their effects would be far more subtle and would be highly unlikely to lead to an unsustainable population of people who live forever.
It’s my hope that this line of research paves the way for more studies into what causes aging and what we can do to treat it. Whilst I will always support people’s decisions to live their lives the way they choose I believe that medical science can do a lot to help improve it and, one day, make death a choice rather than an inevitability.