I was thinking about buying other coins to profit and make more BTC too as BTC grows, but I don't see a clear pick to risk my bitcoins at...
Maybe I should have bought ETH and DASH but what did I knew? Even this ZCASH crap pumped to like 30%, but how can you even foresee that?
I guess ETH is a good pick because ETH keeps getting shilled by microsoft and all those big companies but ultimately that means nothing...
I don't know what to do. I want more BTC, but I see no clear investments... fuuuck

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When the bitcoin price is increasing too much it's really a common thing to see that there's no action from other altcoins. That is the always happening everytime there is a situation like that.
Since we are in the risky investment of doing bitcoin and altcoin trades, why don't try to face the real risk by buying your mentioned coins since you think those are good picks. There is no people who can give an accurate answer here since all are unexpected. If you have spare amount and really confident that soon other alts will rise again, then give it a shot and see what will happen.