Bitcoin (BTC) is down by 2.7% today, September 24, to trade at $84,061 at the time of writing. This drop comes on the back of a strengthening dollar, with the US dollar index (DXY) surging to an eight-week high. Bitcoin’s drop below the $85,000 support has pushed the rest of the crypto market down, with Ethereum (ETH) falling to $2,683 while Ripple (XRP) has dropped by 7.5%.