Although Bitcoin is volatile, we can at least attribute this arrival to the revolutionary changes it is undergoing, and from this situation we can express our interest in it and hold it over time.
For few weeks now, Bitcoin has maintained the $100k threshold, it do come down a bit but never come below $95k for the past two weeks, this has shown that bull run will continue for a while because altcoins are moving up at this moment, and if the bull run continues we can see Bitcoin changing another ATH, and this next coming year we can see some massive movement on both Bitcoin and altcoin.
A little advice to people that are feeling that they have missed early Bitcoin investment; they can invest now using DCA method to accumulate as much Bitcoin as possible at different price because they wanted to wait for another dip opportunity, it can be too late because the price might not come below $90k as expected.