What if reality isn't really what you think it is?
What if our world was just a big video game?
It's actually not as far-fetched as it seems, says Jim Elvidge. Within 30 years, we will be able to create virtual environments indistinguishable from our reality. Within a few more decades, even physical realities will be manufactured. And we are marching toward an inevitable merge with machines. What's more, it is actually impossible to tell whether or not we have already reached that point.