It was called great because it lasted a decade and effected every industry.   This is just usual pullback in BTC and its new to people not here for five years or so I guess.      It often shakes off the quick speculators, every market will do this really

Depends on your time frame for calling it in decline, my view is to call it as sideways moving.      That might disappoint alot of people but I'm not looking for massive movements especially up or down.   It'll be cycling in a range with people reacting like a rollercoaster :p