Interesting Observation in BTC chart

Looking through the all-time chart of bitcoin I realized that bitcoin has been in a very "large" i.e. trend spanning over a long period of time. Whenever the price has gone above the trend line it has taken a rebound from the trend line level and as we see recently it took to support and increased again.

Comment:

In July 2018, this trend line also acted as a resistance which is also true for June 2019