What you are likely trying to broach is the question "do organisms evolve to die?" the answer to which is "yes." This was originally studied in pea plants. The maturation of the seed pods sends a chemical signal back to the main plant which induces death. It dies so that its progeny have more space; this is incentivized over generations because a changing genome is more advantageous to a static one.
Same logic can be applied to animals. It is not just that there may be no pressure to evolve telomere repair, it may be that telomere repair is markedly disadvantageous.
Would you risk your life crossing a road? Working on a construction site?
To cite Tolkien: Elves were destined to be 'immortal', that is not to die within the unknown limits decreed by the One, which at the most could be until the end of the life of the Earth as a habitable realm. Their death - by any injury to their bodies so severe that it could not be healed - and the disembodiment of their spirits was an 'unnatural' and grievous matter. It was therefore the duty of the Valar, by command of the One, to restore them to incarnate life, if they desired it. But this 'restoration' could be delayed by Manwe, if the fea while alive had done evil deeds and refused to repent of them, or still harboured any malice against any other person among the living. [0]
Of course, most of the reincarnated Elves probably stayed in Aman, so they had little influence on the development of Middle-earth. But that is not a bad consequence of getting killed in a war.
[0] https://www.reddit.com/r/tolkienfans/comments/90vqkq/why_exa...
Presumably because the loss of a 1000 year old friend hurts a lot.
As for the far future, maybe we will lie in a tank somewhere, have a cord attached to our brain and control robots that are in the dangerous environments for us. At least the people who can afford such a life style. It would also mean that we don't have to do shorter trips to visit someone or some place as you could just use avatars that are already present. Only for larger distances will ping delays become significant (thousands of km). It also means that we don't need breathable atmospheres or livable temperatures any more. Terraforming Mars would be a waste of time, as would be living down a gravity well. Maybe even the robots would be a waste if we can just live in simulated worlds instead. Already now there is a large gamer population. If you extrapolate the growing segment, we might end in a world where people spend their entire lives in simulated environments.
You'd have to override millions of years of evolution to do that, and I'd argue a society like this would collapse due to its general non-viability, even before our psychological health ruins us.
Also no matter if you live in a virtual system or a real one, your body needs are real, and tied to an ecosystem. Taking a brain and putting in a jar works in Robocop, but again, not in reality. It's not a matter of technology. everything is interconnected.
Anyway.
> Just the pandemic should've given you a hint that people at large don't like being confined to their homes and living in a virtual world.
This might be true for the majority of the society, but not everyone. Personally, i enjoy isolation from others for the most part due to my personality being rather introverted. This is also why i'm okay with remote work and prefer it to being in the office. There are certainly other people who wouldn't mind doing their jobs remotely and even if not everyone needs to do that, the technologies that would be developed around this concept would most certainly be useful in some way, like remote surgery: https://fortune.com/2020/02/11/tele-robotics-surgery-5g-heal...
Even if the things above are somewhat feasonable (with technologies like VRChat becoming an interesting way of socializing for some, as well as communities on Discord and Reddit, as well as social media in general), as for the "brain jar" scenario, i think you are mostly correct. I doubt that we'd be able to tackle the more "sci-fi" topics that concern our biology. For example, even if one could maintain a brain within some sort of a container, we know way too little about what exactly it'd need to remain healthy, as well as how we'd connect all of the nerve endings. Essentially, i think that we need to study our bodies more, since there's probably a link even between our gut bacteria and the functioning of our brains, as well as all of the hormones etc.: https://www.daimanuel.com/2020/11/17/how-your-gut-health-aff...
That's not to say that we shouldn't explore new possibilities and research longetivity or even the mechanisms that control the functioning of our bodies, though. That sort of research would at the very least decrease the health spending in the elderly and would help them enjoy their later years more fully. I think it's worth pursuing without going into either of the two extremes - full trans humanism or total denial.
Is anyone asking me? No. I'm in the minority.
Sorry to be direct, but for most people who enjoy VR environments, but not actual environment, the issue is often in self-perception, confidence and so on. The VR is an artificial SUBSTITUTE for social engagement. But it's to actual engagement like porn is to having an actual relationship (i.e. not good at all).
There's place for VR and so on, but it'll never become the dominant form of existence, unless we hook our brains to the network at a very very low level the kind which is not on the horizon yet (and no, Neuralink isn't it).
Yet the technology existing in of itself and these methods of communication and self expression existing expand the options that are available to people, which can be useful! Would the ICT industry be able to adapt to the challenges posed by the current pandemic and remote working conditions, if progress hadn't been made in regards to asynchronous communication methods previously (Slack, Teams, Mattermost, Rocket.Chat, Zulip etc.)? Probably, but the end result could be less enjoyable than it is now.
That's not to say that anyone should be forced to replace their preferred means of communication in the long term (except for maybe temporarily in the face of situations like the current one in the world), or be forced to live to 150 years of age, or even be a brain in a jar if we're discussing sci-fi.
Yet, in my mind, having a bit of diversity in our approaches to seeing what's possible is definitely a good thing!
So, let people enjoy spectator sports, let them enjoy their sports news and enjoy all of the interesting things that result from the industry needing to achieve everything to support them, from high framerate cameras for slow motion replay, streaming games to large audiences in real time, technologies for cameras that track balls going across the field quickly, motion stabilization and any of the other thousands of neat things you wouldn't think about twice, but could find use in other industries.
To sum up:
> You'd have to override millions of years of evolution to do that, and I'd argue a society like this would collapse due to its general non-viability, even before our psychological health ruins us.
I think you're right here that all of society will not change, but that's not to say that it hurts to be optimistic about new possibilities.
So you claim to know what future generations will be like? Not a good idea. OP is quite right that many kids today spend a great deal of time in front of screens. This is even more noticeable in Asia, the most populated continent on Earth, where online gaming is huge.
I would not be so fast to waive this as a sci-fi flick. It's the classic misalignment of generation's values mistake. We should not assume that we'll be able to understand what our children and grandchildren's values will be.
But your average folks... eh, died of old age.
Suppose we stop aging - this may be great, as we could live at our physical peak until death and the life would be much much longer on average. But at some point, maybe 100 - 200 y/o depending on individual, people's mind may just break.
To truly achieve immortality, we would have to probably reverse engineer the brain and gain complete understand of how it works. Even if we could copy brains atom by atom, or upload it to virtual world, without understanding of how to assemble a brain, this will be useless. A virtual brain, which would not be enhanced in some way, would age exactly like a real world one.
So probably the scenario where people can't die of old age is almost impossible, because that requires technology more advanced than even the ability to backup/restore a mind - which would allow people to die in accident and be restored - although most certainly there would be laws to regulate it, unless we have practically infinite space / land for people to live.
Sorry for going all Sci-Fi on this, I watched the 6th Day yesterday. The antagonist thought he could be immortal because he had a machine that could clone (or rather copy) a person including the brain. He had the ability to get himself resurrected if he died, but he probably wouldn't be able to live even a thousand years, unless he also had developed the technology to prevent data corruption in his brain.
Unless maybe I'm completely wrong and the brains are so flexible they would just work, but there's no way to test it, is it.
I'm not sure that it's actually telomere length itself that's the factor. I think it's more about telomerase.
Telomerase is the enzyme that lengthens telomeres. In cancer cells telomerase production is (usually) upregulated. This leads to cancer cells being able to continue dividing without telomere shortening being a problem.
However, this is just a guess. I'm not clear on the details of the processes.
Successful cancer is the one that learns how to look innocently, at least to the immune cells patrolling the body.
Successful immunological treatment (actually using mRNA vaccines, that is what Moderna and BioNTech were originally about; Covid vaccines are only an adaptation) teaches the immune system to recognize the bad cells again based on their mutations. It will then jump into action and control the cancer growth.