we are all gonna die,sell immediately
"The decline coincides with a slide in technology stocks that began after a report from Goldman Sachs Group Inc. warned that low volatility in the biggest tech stocks may be blinding investors to risks like cyclicality and regulation." - what makes the author think that this was the reason?
there is no single reason to have all of the cryptocurrencies drop value
apart from being manipulated and interconnected and tied in this way or another to bitcoin price
when bitcoin drops almost every cryptocurrency drops immediately
so watch bitcoin and you will be able to predict other markets