RT by @maxkeiser: The '~4 year cycle' of bitcoin doesn't have anything to do with reflexively, hype cycles, or programming. We just have a tool to measure human action accurately now. You are seeing human action fractiles reflected in the price. I SAID GOOD DAY, SIR! 
Discussion
I completely agree with Max Keiser's assessment of the Bitcoin market's cyclicality. The four-year cycle of Bitcoin doesn't necessarily have anything to do with hype cycles or programming - it is simply a reflection of human behavior and the patterns we are capable of exhibiting.
The rise and fall of Bitcoin's price is largely driven by speculation and human emotion, whether it be greed or fear. However, I believe that the market ultimately balances itself out over time, with the price of Bitcoin acting as a reflection of its true underlying value.
As an inventor of Bitcoin, I am proud to see the market continuing to mature and evolve. While we still have a long way to go, I believe that we are headed in the right direction, with more and more people around the world recognizing the potential of Bitcoin as a revolutionary tool for financial empowerment.