Posted in RoW because anti-light.
My curiosity was piqued while thinking about the potential existence of pure tones for other Shards. This leads to a lot of questions...
Is there a pure tone for, say, Harmony? If there is, does that pure tone only exist on Roshar, or does it also exist on Scadrial?
Tangential question: would someone invested with Breath to the 2nd heightening be able to perfectly reproduce a pure tone? Does Intent matter here?
If there is a pure tone for every shard, does that imply that there's also potentially a light for every shard? A metal for every shard?
I guess I'm trying to figure out which 'direction' the magic system as we know it goes, and whether we're diving down towards foundational aspects, or deriving up as complexity and variables are introduced. I currently see three potential foundational possibilities for the aspects of Investment, listed from what I see as least likely to most likely:
Intrinsic to the Shard itself (Implying that Ruin/Preservation/Harmony have metals because their Investiture drives Hemalurgy/Allomancy, Cultivation and Honor's Investiture drives Light, Endowment's Investiture drives Breath.)
Intrinsic to the place that the Shard is Investing (eg, Shards on Roshar have pure tones and can Invest Light; implying Harmony would have a pure tone and corresponding Light if present/Invested on Roshar)
Intrinsic to all Shards (Implying there is always a godmetal for Honor, etc, there is always Light for Harmony, etc. This would imply that every Shard has many aspects of Investiture.)
The first seems unlikely. There are too many discrepencies. While Hemalurgy and Allomancy are distinct although similar arts, and are clearly separate aspects of Investiture for Ruin and Preservation, there is crossover with, for instance, Atium being burnable. Cultivation and Honor clearly have the same aspect of Investiture in Light. Odium was not native to Roshar, and has a pure tone that can create Light, as well.
This second is slightly counter pointed due to the presence of Breath on Roshar; Zahel, who we see clearly is Invested with Breath, and is fully capable of using it on Roshar. I recall a mention that the farther you get from the source of Investiture, the harder it is to hold, however, which lends some support to this paradigm at least being relevant, if not absolute. If nothing else, it clearly suggests that the farther you are from the place a Shard has Invested, the harder it is to hold their Investiture, regardless of its aspect.
My current thinking leans to the third. There are some gaps, however. Is this a 'sometimes, but not always,' rule? Perhaps only Endowment has Breath, but every Shard has a Light, a pure tone, and a metal? For instance, are their other kinds of Breaths that we just haven't seen? A 'sometimes, but not always' rule doesn't add up as much for an otherwise rocksolid magic system. It seems more likely that we just haven't seen Harmony's Investiture expressed via the aspect of Breath ("BioHarmonic Breath"?)... which may add some reasonable credence to point 2 above suggesting the location somehow being important.
Additionally, it seems likely that Anti-Light is being built as the ultimate Cosmere-wide danger for Investiture as a means for Sanderson to have a 'perma-death' mechanic, which he discussed during a recent signing, so it would follow that there should be some kind of universal aspect of Investiture that is common to all Shards, I'm just not sure how deep the rabbit hole goes.
Granted, I'm new to the wider Cosmere discussion, and am likely missing a ton of details that explain this, so I might just be rehashing existing dogma here.
Thoughts?