IIt is the household appliance that people like to hate. Since launching Amazon Alexa in 2014, more than 100 million of its Echo and Dot devices have been installed in homes around the world.

From Bristol to Brasilia to Boston, consumers have taken advantage of Voice Assistant devices, from listening to their favorite tunes to booking movie tickets, finding recipes, and tracking their sports teams.

But for the creator and chief scientist of Alexa, Rohit Prasad, this is only the beginning.

Alexa may already be able to control more than 85,000 smart home products – from earphones to doorbells – and process billions of interactions per week, he says.

But get ready for a long way in the future …