Presently we can't point to the problem that causes Bitcoin to fail and even though the entire cryptocurrency market is on a red trend right now we can't point to which limit is going to be the last that Bitcoin will dip to and what the right price to buy the dip is.

But what is also important is that bitcoin is going to recover in its price so if you want to buy the dip, just use the amount of money you can afford to put aside for a long period since we don't know how dip those current red market will go.