Well imagine being an investor then investing to Bitcoin first. You would think of diversifying your investments, right? That would lead to buying any other coins in the market at the time. Surely you already know where it is going.

From that people would invest to any other coin in the market after they bought their Bitcoin. It has been like that in the market. Just like the usual market outside, when apples rise in price, there's common scenarios that even oranges and strawberries rise in price especially when they're almost biologically similar to each other.