Somthingmachine

I was pondering this same question in a Facebook group the other day. I had the theory that maybe it worked like compressing more information into a smaller space. (i.e. Zipped folders in Windows etc.) That depends on whether I'm correct in that depending on the size of the metalmind it can only hold so much investiture. (Like a bracer holds way more than a ring) Maybe burning a coppermind lets you put more information into a smaller coppermind. Like if you could swallow a golf ball sized piece of copper that was full you could then pour the memories stored there into a smaller form, like a ring, or marble sized copper ball. That was just a spitball idea I thought of, though the above seems more useful/more interesting.

Did you ever find this WoB? After rereading AoL I was beginning to wonder if the earring was Hemalurgic at all. I say that because it seemed like Preservation had the ability to communicate with people without them needing to be spiked in HoA because Vin was able to kind of communicate with Elend, and I believe there were other instances of that happening with the use of Preservation's power. I kind of assumed that since Sazed held both Ruin and Preservation that he may just be able to communicate with people and that the earring is just a symbol because of Vin. But idk, tbh. haha