Also, gold content of asteroids is incredibly low. You'd be lucky to find a metallic asteroid with even 1 ppm of gold. Mines here on Earth often have grades abo

Also, gold content of asteroids is incredibly low. You'd be lucky to find a metallic asteroid with even 1 ppm of gold. Mines here on Earth often have grades above 4 ppm. The highest grade mines have above 20 ppm of gold. Second, let's say you find a M-type asteroid, how in the hell are you going to melt the nickel-iron and reprocess it for the valuable stuff like gold and platinum? Overall, asteroid mining is pretty idiotic. It will not be economical within our lifetimes and certainly will not play a role in producing the resources necessary for combating climate change.