Think Siri, Cortana, Alexa, et al. Data Journalist Felix Richter shows in his chart on Statista, published 26 August 2016, a forecast of an increasing number of virtual digital assistants. He writes:
“According to market research firm Tractica, the use of virtual digital assistants (VDAs) is going to increase sharply over the next few years. As our chart illustrates, the number of people using digital assistants is projected to increase from 504 million this year to 1.8 billion by 2021.”
The chart below shows the estimated number of users of virtual digital assistants worldwide.
You will find more statistics at Statista