The blue line shows how the price of bitcoin has changed over the years.  From pennies to $36,000.
Price is seemingly so unpredictable that it's hard to know when to buy and when to sell. 
Bitcoin's price goes up and down through waves that are synchronized with the halvings.
If you look at the corner chart, the sine waves have a period equal to the halving. 
You'll notice that the geometric mean (yellow) on the corner chart looks like a sine wave.  I fit an actual sine function to the geomean.
The recent halving took 1402 days.  I set the period of the sine wave at 1400 days.  The geometric mean spans one half period.
The sine function can be extrapolated to provide a guide for future trading.
In the past, the green and red lines showed a pattern of buying and selling opportunities through bitcoin's history.
Extrapolate the pattern.  Now you have a guide for when to buy and when to sell.
When bitcoin's price goes near the green line, buy.  If the price dips below the green line, get out your dump truck and load it to the gills.
The red line serves as a warning zone, you should consider getting out of the market or at least lighten your bags somewhat.