if the price of bitcoin drop, it will not only have an effect on memecoins or solana, but throughout the crypto market, because bitcoin is like a reference from the crypto market, if the price falls then usually other coins/tokens will also follow. but not all of them will experience the same thing, because some tokens can have the opposite performance when the price of bitcoin drops, it is possible because investors are optimistic about the token so that they are not affected by what is happening in the market.