Topaz

I love the detail of the post, and I like the idea of a spren-heavy magic system, but we know that the "old magic" would probably come from cultivation, and the spren are of honor. Other than that though, I can't find many holes in your theory

I am topaz, a beautiful stone that was made worthless by a certain storyteller. *angry grunt*

So, for this theory I will be mainly referencing The Coppermind: Preservation, Intent, and Hoid. So. The main part of my theory is as follows: Hoid once was affected by the shard Preservation, he never held it, we know that because "the shards ruin and preservation were drawn to each other." So, I'm not sure how he was moulded by the shard but, he was. For my first piece of evidence, I will cite the Coppermind page on Hoid, more specifically: Abilities: "Extremely long life and time dilation" this quote shows that Hoid is being Preserved by something, because while other characters show long life, it is because of breath, while Hoid has breath, the power of breath doesn't also come with time dilation, and here they are in the same "ability. Secondly, another ability Hoid has is "Regeneration" this is similar evidence, but not as strong. And for my final price of major evidence, and the thing that got me thinking about this, "inability to hurt others - Hoid cannot easily kill people "because of curtain things in his past."." This is the most important part of my theory, because no character that I know of has this specific inability. It is also one half of preservation's intent. That was the evidence, and almost at the end of my theory, I bring up a quote from the Intent section of the Coppermind "a shard's intent can warp the personality of it's holder" we know preservation's intent (to preserve, just in case there are some people who don't know) and this intent seems to be almost, personified in Hoid's abilities (as well as inabilities) So. In conclusion: Hoid cannot hurt, be. Hurt, and he might not even be able to die. I don't know how this happened, but I can assume that preservation (the shard, not the shardbearer) had something to do with it Note: this is my first theory, so I'm not the best at formatting and stuff, so, I would really appreciate tips and stuff in the comments.

When stew with shells sounds like a good idea

You flinch whenever you see people drawing with chalk

Thanks for the reply. I have one more question, if the Parshendi weren't created by Odium, they probably evolved on Roshar naturally, along with all of the crab-like wildlife. If that is true, would that imply that Roshar is the oldest planet in the cosmere, because it has the most unique and advanced evolutionary chain.

Did odium create the voidbringers? There is no mention of them on other shardworlds, and they seem designed to fight Honor, so where did they come from?