That's a valid question....... 30 years back in time, for someone who was 40 at that time. 20-30 years from now - 50-60 will be very different in many ways, compared to current 50-60. Physically, but that's just one side, another - technologies. You'll be able to have a "companioship" in ways that we can't even imagine currently (probably even AI will be a good friend to have a company, or maybe it will be a better friend than real people, who knows..). Peoples brains are used to thinking "linear", but that's not how technological evolution happens. Life will be VERY different for these who'll manage to stay alive 30 years from this day and I'm confident to say that most uf us aren't able to even imagine of HOW different it will be. From heart transplants, grown in a lab, to brain regeneration, stem cell therapies, full immersion virtual reality, etc... just earn some fukkin money, that's what a main goal must be for these who are afraid of becoming "lonely".
you re out of your mind.
Being lonely at 50/60 and later -if you get there- will always suck. It sucked 1000, 100 years ago, it sucks now, and it will always suck. Having an artificial heart and a chip in your brain or not. You re way overrating technology and science.
The older you get, the less relationships you have, if you dont have close relatives , kids, grandkids. Nothing replace family. Fact is as you age you become a kid again and you re FORCED to deal with people just like you were forced to once a kid, sent at school and facing the competition of others.
Also all the implants and progresses you re talking about will only be accessible to the richest. Most will tell you what's the point of living eternally if it's to be alone surrounded by people who dont give a shit about you; other old lonely people and
prison retirement home wardens. People who dont really need you, not really as much as kids or grandkids would anyway.
The only thing you want as you get old, is to talk to someone who actually genuinely looks like he or she cares about what you re talking about, as it gets rarer and rarer as you become disgusting looking to most.