If seems as though we've been talking about the Internet of Things (IoT) for ages. And that's because we have – the term has been around for 15 years.
But, despite it being a buzzword at this year's Web Summit tech conference in Dublin, it's far from obvious that the world of controlling household objects and cars from your smartphone is any closer.
Accenture estimates that there will be 50 billion digital devices by 2020, with chief technology officer Paul Daugherty saying it will "dwarf the mobile industry". But not yet.
"It has certainly not arrived in the same way that mobile ubiquity has arrived," Josh Elman, partner at Silicon Valley venture firm Greylock, told CNBC in Dublin. "But it's absolutely going to be at some point in the future… We're almost there."