Knowing how to spot and draw good support and resistance levels is important if you want to be a trader. Relying solely on fundamentals wouldn't do you much good. From the chart, you can see the different price levels bitcoin has hit. Bitcoin has risen significantly although the market is unpredictable, I dare say the bull run is not yet over.
If you go for different technical analysis then each tool/strategy will give slightly different support and resistance levels. This is the simple reason at every price level some people are buying and some others are selling with their respective expectations. Knowing fundamentals alone will help you if you are an investor; you must need to be an expert in technical analysis if you want to be a profitable trader.