It is likely that you, a human, can tell when your fellow humans are upset based on the sound of their voice. You might even be able to tell when your non-human pet is upset. But what about non-mammals, like frogs? What about birds?
Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.
One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.