i'm new at bitcoin trading
i have read this little note of bitcoin trading someware
Bitcoin up = altcoin down
Bitcoin down = altcion down
Bitcoin stable = altcoin moon
is it true? can i use it for a guide in trading?
and why Bitcoin can greatly affect to other coins
i know bitcoin is the king, legend, the first but is it possible just because of that?
Hmm. In some way its true, but there are instances that it doesn't hold. Remember December? All coins are mooning including bitcoin and almost all altcoins. So that is one example wherein we one of your premises was not satisfied.
But obviously there's some correlation between bitcoin and altcoin market as you have put in. A good explanation why altcoin is affected by the price of bitcoin is simply, traders shift funds around and go to where there is a potential money.