1 meter of the #dexmat.com carbon #wire is 19mg, and for #copper, that is 142.9mg. not quite 10 times but not far. The material is fairly #equivalent and it's all carbon.
https://store.dexmat.com/galvorn-cnt-hs-twisted-yarn-150-microns/

However, they gotta work on the #affordability. 0.5 meter of 35Ga strand is $75 bucks! They need to #industrialize the #bejisus out of the #process to make it worth anyone's time. But it's #carbon and it's real not like #graphene.