I figured that out of all the forums and social media I'm on, this is the best forum to ask my question. (There's a higher concentration of science fiction nerds here than is normal, and by definition they are all decent on here unlike the "other place".)
I've been given a challenge at work: What are the next big technological changes that we'll experience in our own lifetime. It's really to do with jobs and the effect on them, so for example driverless cars are likely to eventually put taxi drivers out of business, but jobs will be created in servicing them. They were an emerging technology 10 years ago, which means they were a seed in someone's head 15 or 20 years ago, and a science fiction staple before that.
VR is another. While it's been around IRL for about 30 years now, it's only just moving out of the games arena and into work, with VR allowing remote work thousands of miles away such as saving someone's life in an operating theatre or ending it from an armed drone.
What are we dreaming about now that 10-20 years from now will become fledgeling tech development we'll be getting excited about, even though right now we can't imagine how it could possibly work?