Because the bitcoins are created to be volatile and they are always depending on the activities of the people day by day. So my advice if you're planning on buying bitcoins do notnever buy bitcpins in their highest price because youbwill expect them to fall tremendously. Look at those people qho buy bitcoins in december when the bitcoins are in the moon after a week it falls and up to now the price are mot recovering. It takes a pot pf months before the bitcoins rise again.