Fifth Heightening + F-Atium

[Tglassy]

So, the Fifth Heightening effectively makes you immortal, as in you no longer age, if I'm not mistaken.  So if you were a Feruchemist and got ahold of some Atium...would you still make yourself younger?  But even if you could make yourself younger, you wouldn't age again.  You'd have to put your Breaths somewhere else and then store youth to make yourself older, and then take your breaths back to get older.  

 

Or if you tried to store Youth, would you not age, since you don't age as you grow older?  Could you, effectively, store an infinite amount of youth in the Atiummind?

 

And then if you stored your Identity completely before storing a near infinite amount of Youth in the Atiummind, and then created a Medallion that allowed the use of Atium, could you effectively sell a medallion with the power to make anyone who wore it as young as they wished, forever?  If that's how it worked, you could literally sell immortality, or near enough.  Yes, on the one world, you could just buy breaths, but you have to take other people's breaths to do that.  This way, there's not as much moral implications.  

 

My goodness, the economic implications...

[Friendshipspren he/him]

But then again Atium isn't exactly an abundant metal. A thousand years of atium supply got depleted in minutes. Now there's probably little or no free atium left. 

Marsh has the last cache and he's probably running out of it too. In a few decades or centuries. 

[Weltall]

Brandon's been asked this and of course the official answer is RAFO.

Now, this is based on a WoB that Brandon explicitly hasn't canonized yet but according to our most current information on the subject, someone at the Fifth Heightening who then went below it would experience a similar age rebound as an atium compounder. Assuming for purposes of discussion that it becomes canon, that would imply that the slowed/stopped aging you get from BioChroma doesn't stop your Spiritual aspect from knowing how old you 'really' are, it just tricks it in a more stable manner than F-Atium does. So while you don't need more Breath after hitting the threshold for the Fifth Heightening, your soul would still know that you're older than your biological age and you should run into the same issue as Rashek where the amount of Youth you'd need to store would increase if you wanted to use F-Atium to maintain any given age.

Sanderson's Second Law being what it is, I'm guessing that for some Realmatic reasons this would transfer over to the attempt to store Youth in an unsealed metalmind and it would take more and more storing on the Awakener's part to get any given quantity of youthfulness regardless of who was using it. So there would be diminishing returns the longer the metalmind creator lives, even if the people using the atiummind aren't themselves subject to any of this 'old soul' effect at first.