Extracting Copper From Waste RocklI keep seeing this story from time to time, but they have to keep promoting what a game changer it is. I watched a copper panel from VRIC and they never mentioned this new process. It must not be too big of a game changer just yet. I looked briefly at an article online, and it said that 2021 they were attempting this process under a carefully controlled experiment. Show us Kamoa Kakula and West Forelands and forget the waste rock. How much copper can be left over anyway?