-snip-
That is true, you can easily see the movement but the reasoning of such ups and downs, that is for you to find out.
Because those roller coaster movement have their reasoning behind. And much better if you understand them so you know
its influence in the market and make some smart decisions when you need to buy more for your stash.
Prices are influenced by many things - but sometimes it's difficult to know the exact cause of a drop. There are times when the price drops due to bad news whether it be a hack of a centralized exchange or perhaps the detection of a large sale by one of the whales - but other times, the price drops without any known cause.
You'll need to stay on top of the latest news if you're buying and selling because of it - but I tend to agree if the goal is short term. If you are investing for the long term - you should do as many other holders do, buy the dip and do DCA and hold for the long term.