"Gartner estimates that IoT product and service suppliers will generate incremental revenue exceeding $300 billion in 2020. IDC forecasts that the worldwide market for IoT solutions will grow from $1.9 trillion in 2013 to $7.1 trillion in 2020.
GE estimating that the “Industrial Internet” has the potential to add $10 to $15 trillion (with a “T”) to global GDP over the next 20 years, and Cisco increasing to $19 trillion its forecast for the economic value created by the “Internet of Everything” in the year 2020.
“This is the largest growth in the history of humans,”..."
At least this is largest (self-serving) hype so far :)