This diagram explains a little bit of how most of the investors react to there investment whenever they see the price of Bitcoin moving this way, the first thing that would come to there mind is that Bitcoin price is about to fall and before they realizes themselves they had already started panicking and even selling there Bitcoin.
However in times of Bitcoin accumulation and holding is not mostly advisable for an investors who doesn't really understand the potential of Bitcoin to always monitor the price movement of Bitcoin because they could easily be influenced by just a normal price consolidation thinking that the price is about to fall without knowing that the price doesn't just moves straight without consolidating at some certain zone at times.
Source: https://www.coinbase.com/learn/advanced-trading/reading-financial-charts
The more market research you do the more you will want to sell your accumulated bitcoins. So it is better to invest in Bitcoin by looking at charts, because those who want to invest for long term must invest in DCA method in Bitcoin weekly or monthly. Investing in DCA method is so good that only the person invested can realize it. You sell bitcoins at different prices and on average your purchase price will be much lower. This is why the DCA method is the most popular and best among people because of its wide range of effectiveness.