Cthris, you can make a hypothetical where an increased lifespan is a negative, but if we're talking about the impact of empirical increase in longevity in the real world hypotheticals are irrelevant. We know the events that transpired to increase human longevity and should judge the pros and cons based on that, especially since the stated goal is to compare a known past to a known present. I think you'd be hard pressed to argue that contributing factors like antibiotics and vaccines have left humanity worse off.
Decreased child mortality (thus less grief for their families and theoretically greater contribution to society), fewer people crippled by polio and like illnesses, the utter eradication of a disease like smallpox which from a human perspective existed only to bring misery and death (and serve as a biological weapon against western hemisphere native populations). Some of the most impoverished places in the world are those that lack easy access to modern medicine (or reject its use on religious grounds). That is obviously a contributing factor rather than the sole causation of their situation, but it cannot be ignored.
In the case of your hypothetical virus, as Hguoh said, we would be worse off in the wake of a pandemic where the only outcome is that enough people died to drag down life expectancy by 5 years. Especially if you want to start talking about the productivity and potential lost from all the sick and dead. If you want a real world example, H1-N1 did drag down life expectancy in the wake of WW1 and hindered the post-war recovery efforts in several nations.
EDIT: I can also say that I would not have survived in any time period before the latter half of the 20th century. I was born nearly a month premature and only survived because of life support. I'd be another baby dead at age 0 at any other point in history. I'm not especially important in the big picture of mankind, but that my life could be preserved is a definite advancement imo.
22-Mar-2017 15:08:14
- Last edited on
22-Mar-2017 15:20:26
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Rifleavenger