It's not the state of the moon or any other planetary body, it is the state of the minds of the traders in the metals.

It is the old practice of seeing gold as real money and a shelter.

Silver lags because the old fashioned folks are not in tune to silver's global shortages relative to gold and the historical price ratio between these metals. Once the upward move develops momentum then the physical shortages will exert their influence and I suspect will trump the historical psychology that is linked to gold.

Also the current generation has to wake up to realities of the PM markets, per the late 1970s to 80s era. New Hunt brothers will surface with a fever.