Most of the speculators before and even now are saying that if Bitcoin goes up, then altcoins goes up as well and good projects perform well. How true are these speculations if there are different technologies or plans for each cryptocurrency? And the fact that bitcoin is not even the first cryptocurrency.
Actually my understanding in here is that it is reverse proportional. If bitcoin goes up, alts goes down. That's why we have something we called btc dominance in which bitcoin dominates other coins. This is based on my experience during the bull run last last year and then eventually alts goes up as well. When btc became stable.