Check out the following graph from Google Trends, showing results for “Cryptocurrency” (2010-2015).
The line charted depends generally on the number of searches made in Google, I believe (if I am wrong here or there is more to it please let me know).
It looks like the whole of the year 2015 marks a gentle change of trend from decreasing to increasing.
A very general and simple overview, I know, but for those working on cryptocurrency projects I believe the signal is slowly becoming clearer - more interest will be coming our way, probably over a multi-year period.
What are your thoughts?