But all these things aren't likely to impact the happiness and life satisfaction of those living in the developed world. The internet has been huge, but it really hasn't made us happier as a whole.
I would like to see someone create something that will make people's lives happier. That probably means doing something that will foster good human relationships and real world experiences.
I guess there's a lot of potential for driverless cars to help with that, but they could do the opposite as well. I think we need better tools for connecting with each other, understanding each other, forming social organizations and communities, and maybe changing the geography of cities to bring us closer together, rather than making it possible for us to be further apart. It's likely that new technology isn't needed, we just need to use what we already have in a new way.