Some secular humanists, including transhumanists, want to live forever, and are funding scientific research to that end.
I believe that would be a terrible mistake to wish for, or even implement, even if it becomes scientifically and biologically feasible one day, and that may come about.
My repulsion towards such meddling with human mortality limits is that is grounded on two premises.
Psychologically, we are tied to the generation, the culture, the epoch in which we lived our long lives. To go beyond that and live forever is to violate some natural and likely supernatural laws about there being a season for everything, a time to live and time to die. If these were the conditions, instilled in us by our Creator as optimal for a human to gain and keep self-esteem and know happiness when a mortal in body, and as a possessor of a limited soul or consciousness best happy when living and dying when one should, then living forever is most undesirable and to be avoided.
To stay to long, or beyond what is allotted to us, may lead to our feeling damagingly lonely and isolated from our generation, the vanished world that we knew in our youth. Our concomitant unhappiness and sadness may then become inverted into rage, resentment, malice, insanity even.
We dread dying, and are terrified of the end, but, really, we must be assured and settle for knowing we will live on spiritually; that is the way of the world.
God, deities and angels, who live billions of years, perhaps forever, and yet are pure love, pure individualism, wholesome, unlimited consciousnesses: these immortal individuals are built to handle cosmic, eternal isolated; they are so lonely and alone, that we could not maintain psychological health as they do living forever. We are not built to withstand the pressure of being loners on such a prodigious, profound scale and level. We are not built to handle such an enormous psychological burden, and it would be unwise to seek to do as divinities do, to live forever, or an inconceivably long time, because we are not accepting our natural and supernatural limits, which God wants us to do.
We are in great peril, should we start to ignore God’s injunction to humans to die and die gracefully when our time is up.
