general chat/ thoughts, page-580

Im not a technical person so bare with me. Why will companies use PWN's water treatment tech rather than some other companies water treatment tech? Please dont tell me that it because its cheaper or better please tell me why it will be cheaper and better. There must be a juzillion different types of water treatment what makes PWN's better? I understand direct extraction of lithium a bit and I understand that there are about 60 different types of direct extraction, why dont brine producers change to water treatment? Hard rock mining is very energy consuming seeing that most spodumene has to be roasted and evaporation is a Roman era technology. Surely in this time of expected lithium shortage water treatment of brine seems like a no brainer but it is not happening and I wonder why. Where do you see PWN's technology as most useful in treating waste water or in treating primary brine deposits?
Sorry if this has been covered somewhere else I dont read everything.