this is my observation for so many years and it is already happen that most altcoins rise when btc rise.
That's not entirely accurate... if Bitcoin leads the game, altcoins won't have a big impact on the cryptocurrency world... this happened when Bitcoin experienced a very strong bullish phase, where investors only focused on Bitcoin and they left altcoins... here Bitcoin really took control of the bullish and attracted altcoin investors to raise BTC.D
Surely a few months ago you realized this, where Bitcoin experienced a bullish phase until it found its new ATH, but we saw altcoins moving sideways...
...
However, when the Bitcoin hype starts to subside, it will make altcoins strengthen in the near future... yes, everyone will return to their respective activities and altcoins will get more attention because investors have made a profit from Bitcoin... which of course will look for other opportunities from cryptocurrency... none other than that is present in altcoins,