Having to listen to that Queen song, forever.

Forgetfulness. Think how forgetful people get after having lived a normal lifespan, now go for a few thousand+ years and you’ve probably forgotten whole centuries of your life. This is actually the premise of a solo journaling game Thousand Year Old Vampire, you have to cross out and forget memories as you progress through the game, just forgetting whole parts of your life.

Losing all of the skills you gain. No matter how good you get at something, after a few centuries you’ll have lost your edge. You can also only practice so many things concurrently without giving something up. At some point, years down the line, you might try to ride a bike again and completely fail to do it, or try to sing and fail to hit all the notes that came easily before, or do gymnastics but the muscles you need are underused. It doesn’t matter that you spent years mastering every skill, your abilities will degrade over time. You’ll never really be able to feel sure about your own abilities except for whatever you’ve done most recently.

Btw if you were actually immortal, after a while you would just go into shock and enter a vegetative state from all the psychological stress.

People are commenting ‘fates worse than death’ and ‘being made into a labrat by the 1%’, but really, if you have infinite time to just do stuff and you can’t be killed – And you don’t somehow squirrel your way into a position of power then what are you even doing with your time and immortality, oomfie?

The loneliness part is also questionable. I know OP said it’s overly done, but I also think it’s just wrong. If you’re an adult you’ve had people in your life die before. It sucks. You miss them. But then you move on. And you meet other people. You’ll still go “:(” when you think about the person and such… But life goes on.

And that’s just life. It doesn’t get any worse if you extend it longer – If anything it gets better. You might have lost your beloved today, but you have another dozen lifetimes to heal your wounds and meet someone else and fall in love again and (…)

So here’s some lower-stakes, frustrating inconveniences of being immortal:

• Your favourite fashion? It’s not just out of fashion. It’s so out of fashion it is now considered ‘historical costuming’. You can no longer find any articles like it at all. Because the only people even trying to recreate the techniques are costuming nerds and theater people who always exaggerate stuff
• You got a song stuck in your head. It is either from before recording was invented, or any recordings of it that existed are too old to be reliably listenable. You have a song stuck in your head.
• You used to really enjoy a job you did. That entire career path is now obsolete. As per the first paragraph of my post, if you’re immortal you have probably snuck your way into the upper echelons of society at some point during your infinite time… But like. You’re bored. You loved being a Court Jester, now there are no Court Jesters.
• Actually tedium just in general. Sooner or later you’ll run out of new things to try, because you’ll have done everything that even remotely caught your eye already. So what the fuck will you do with your time? You’ll eventually just get depressed and not do anything.

Cross the wrong people and you end up not dead, but irrecoverable. Cement shoes, buried alive kind of stuff. Cross a different set of wrong people and you become a labrat. To avoid either scenario, you’ll be in a constant state of “undocumented” or false-documented which will keep you in a pretty consistent state of poverty.

Cancer. So much goddamn cancer. It doesn’t matter what kind of immortality you have, you WILL get cancer. Repeatedly. Over and over. Forever.

Wage slaving never stops

The disappointment of experience winning lifetime supply of something but that would eventually turn into a lie

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Family meals that take 3 restaurants No retirement

Loneliness. I think being immortal would show someone what true Loneliness is

If the ultra rich find you out, you can expect lab-rat life, at least until all modern systems collapse. Death is the only thing those suckers fear, because regardless of their net worth, it comes for all, even if late. They would do anything to find out your trick

If we’re talking magical immortality, as in you can’t die, at all. Then the fact that however much enjoyment and experiences you get while the universe still exist, it will be followed by an infinite stretch of nothing after the heat death of the universe.