#Silver and #BTC often move together (Positive Correlation) during:

#USD weakness
#Inflation fears
Loose monetary policy / #QE
Geopolitical stress
Both are sometimes viewed as:
Alternatives to fiat
Inflation hedges
For example:
During parts of 2020–2021 stimulus cycles, both $BTC and #XAG rallied.
They sometimes decouple because:
Liquidity and Volatility are not always matched:
When risk-off hits hard:
Bitcoin often drops like a tech stock
Silver may hold better (or fall less)
In strong risk-on:
Bitcoin often massively outperforms silver