I don´t hold any BTC because I don´t see future in this coin, but...
Always when BTC is going down so everyone else, do you think that in case of dramatic fall will every other crypto go down too?
And it brings me another question, when people sel their BTC, where the money goes? Do they make instant withdraws in USD and get out of the trade completely? Cos if BTC is going down some else should rise but whole market is on decrease.
I think it will take down every other alt.
Because people are associating Bitcoin with crypto currencies. They will not give their money for alts if there isn't bitcoin.
I think you'd be able to feels its effects on other alts but with that being said, I think some other coin will eventually replace it. Sooner or later.