James Hughes: When my kids asked “Are there really unicorns?” I answered “Not yet.” That’s when I realized there were challenges to being a futurist and a parent.

Chats about what kids will do when they grow up get tricky when you’re sure that most work will be automated, and that any jobs they may be lucky enough to hold probably haven’t even been imagined yet. Yes there will be veterinarians, but they will probably tend industrial meat-vats or service lines of cloned designer pets.