Numerous promises were made by the Safemoon team, which haven’t been delivered on. Although the price decreases could be a variety of things, it’s likely a slow burn of investors selling their holdings and depressing the price.
Meanwhile, even the most enthusiastic bitcoin evangelists are realizing that a retooling is in order. Michael J. Casey, a senior adviser for blockchain research at MIT’s Digital Currency Initiative, recently wrote about how the crypto-winter has arrived, but it may lead to better things down the line:

“One of our institutional traders indicated to us that they had a bug in their trading algorithm, which appears to have caused the sell-off,” Binance.US said in the statement. “We are continuing to look into the event, but understand from the trader that they have now fixed their bug and that the issue appears to have been resolved.”
You can think of the liquidity pool as a body of water that people are constantly taking from and adding to. If the pool is the size of a bucket, even a few cupfuls in or out affect how much water is left, and therefore how much you pay for it. If the pool is the size of a lake, even thousands of cupfuls in or out have no measurable effect on the water level in the lake.