I know it is highly unlikely, but I still have to ask the question. The way it has always been is alts move up when bitcoin goes sideways, or alts get crushed if bitcoin goes down or they get crushed in bitcoin value if bitcoin goes up. Even the top alts suffer from this to some degree so I wonder if it's possible someday for let's say ETH to have price action noncorrelated to bitcoins drops or big moves up. The way the structure of the market is everything depends on bitcoin like when dropped to 3,800 not too long ago everything else took a dive with it. I wonder if ETH or some alt can ever decouple from bitcoin? My guess is probably not its just the way it is even tether goes below a dollar sometimes depending on bitcoin price action. There are some alts that have all time highs before bitcoin does so in a way that is kind of a decoupling, but they still suffer from bitcoins price action. Anyway interesting subject to discuss I would love to get everyone's take on it
It is not always true, you can check omc each coin has it's own movements depending on fundamental events so you cannot say that they follow btc, even now many projects are really pumping parabolically, just check swissborg in that case, while BTC and most of other coins are silent rather seem to be in sleep mode.
Secondly, I think you are taking it in wrong sense, price movement in most of coins is not coupled to btc rather it depends on overall crypto market cap, if volume decreases there is high chance of price decrease and if it increase there are chances of increase in price of most of the coins, so thinking everything is attached to btc is not correct.