It says everything.

However, I assume that we're early but we aren't slow. Bitcoin is a global phenomenon and it doesn't require so much of infrastructure to be practically used. We're definitely moving towards touching 1 B user mark in a year or from now and many governments (smaller ones initially) will start giving it a shot. Yes, to completely alter or abolish the old system of Fiat, it will take time. May be a century, may be 20 years from now. Who knows! But Bitcoin is inevitable!