^^Firstly immortality potions etc very rarely mean that in the fullest and horrible sense - like say the hourai in touhou - never being able to die.. What it means usually is just they dont age. It would still be a simple matter to choose to end your life if you'd had enough after a couple thousand of years.
2nd, I don't know I buy the whole humans are not meant to live that long argument. yes we are not, physically. But if you solved that issue, Its possible we would handle living tens of thousands of years totally fine. After all we'd just end up forgetting most of the stuff we knew long ago- you just would not be THAT aware of all that time behind you- just like how whole years and decades in our pasts for us are compressed to just a few memories.
And while maybe we couldnt handle it- it's not like we have any idea- nobody has been In that situation to see.
Lastly, even if Saikawa took such a potion, she would not outlive Kanna so that wouldnt be a problem. The manga mentioned the dragons lives are so long they are basically immortal. Like they live billions of years. It would be far more likely one or the other would die of an accident or whatever eventually. But they would still have a lot longer together.
So basically any reason someone can think of why it wouldnt work or be bad can be countered with other reasons why it would be fine- so then it's just a case of which you'd rather believe.
last edited at Nov 5, 2019 1:19PM