Gold and silver are real commodities and if there is war all over the world may be people go back to ancient times using gold and silver plus a barter system to buy goods and services again. I just am preparing for the future you never know we might go to stone age and yes am not trolling or joking even. The technology is going to far with AGI and what not chips in brain even I do not think a sustainable future can be acheived if this rapid growth continued.