Every market like stocks commodities Interest rates etc see corrections upto 75 % which doesn't mean that they will not go back up higher and history proves otherwise. These corrections in fact are healthy. There can be many many factors behind these moves. Bitcoin being the first crypto with early mover advantage and with improvements like Lightning Network in the works, Bitcoin will keep growing and will see new highs in the near future.
thats why most of bitcoin supporters along with those alts holder waiting for the lightning networks development and release since nothing can make difference from bitcoin towards the issues throwing towards this coin.hope it will be settled and let the btc to recover and grow more than the last pump