If you believe gold's going to go up, buy silver

From that point gold rallied to a peak of $1920 around a year later ( a gain of 50%), while silver took a little longer to peak to $49 the following April ( a massive gain of around three times that of gold) before silver was dramatically taken down -- in a similar manner to gold earlier this year. 

Butler reckons that it's not hard to imagine a similar scenario to occur in the near future.