The modern world of electronics is unthinkable without gold wire, it is needed for the manufacture of microcircuits - the "brain" of various devices. Engineers value "despicable metal": it does not oxidize, has good thermal conductivity, low resistance and a high melting point. There are even companies that are engaged in the extraction of precious metals from old devices - cell phones, computers, etc. The idea is good - the reserves of gold are not large, and it is good for the planet - recycling helps to avoid littering.