Because Silver is at level from where it can rally big time or sell off big time.
Here's the Silver weekly Chart
Silver sold off to to $18.75 in June 2013 and a year later, silver is again at 18.75 with no meaningful bounce during the year. There has been lots of technical buying during the year on hope that silver will rally from current levels.
What If Silver cracks below support of $18.75?
If Silver cracks below $18.75, then one should expect a dramatic sell off/ technical liquidation. Considering Silver is at support, this is one metal one should keep a close eye on.
The blogpost is purely for educational purpose.