Dec 2013 - $1000 (Four-figure breach)
Dec 2016 - $800 (Second halving year)
Dec 2017 - $20000 (Five-figure breach)
Dec 2020 - $19000? (Third halving year)
Dec 2021 - Six-figure breach
In late-2016, early 2017, we retraced 61.8% (fib) before building back up throughout 2017 to $10000 for the first time and beyond. You can expect a similar retrace this time as a secondary bear trend grips the market over the next month or two. Scarcity is a factor of time. In Bitcoin's case, it takes c. 18 months for the new reality of 50% of the natural sell side evaporating to fully impact the market. Of course, there are other factors but they all play into this framework, like clockwork. Tick tock!