Would you rather have one bitcoin, or a single ounce of gold?

The answer used to be obvious. Even at the climax of the legendary 2013 rally, bitcoin was never able to reach unit-for-unit parity with gold.

However, since an off-year in 2014, the enigmatic cryptocurrency has steadily climbed in price to take the title of the best-performing currency in both 2015 and 2016. And today? After continuing its rally into 2017, the price of bitcoin has now passed this arbitrary, but psychologically important measure of parity with an ounce of gold.

How did we get here so fast?