Every technology or establishment has its period of decline and downsides,and from the way 2018 panned out,i wouldn't be wrong to call it a dark year for investors in the cryptocurrency market.
But that's what investments are all about,it certainly cannot be all rosy,one has to be prepared for it's downsides and get ready through strategic planning so not to be taken unawares
Nonetheless, from every available predictions the global economy would pick up from second quarter of 2019
Mere speculations by our so called experts,lets hope it does happen though