Well, it's funny unless you are short!

Bitcoin adds a "Zero" every two years or so, or at least it has in the past...

2009 - $0

2011 - $10

2013 - $100

2015 - $1,000

2017 - $10,000

And if it were to keep going at this pace...

2019 - $100,000

2021 - $1,000,000

And you thought those guys calling for $1 million per coin were just pulling a number out of their arses! :)