Yes, someone is simulating our lives after all...
Should probably explain that. Some guys in some university somewhere have done the actual math (this isn't some no one talking nonsense, this was in New Scientist, and a guy from a real Uni; and it makes sense) and shown that it's almost certain that the world we know is a simulation.
Reasoning goes like this.
Sims, very popular game, simulating a city. With time the game's getting better, more realistic (Sims 2, Sims 3). Carry that further (Sims 45,374) and the Simulation will be damned near perfect.
Ok so we have computer that can now run a simulation of a whole planet.
Now, Sims was very popular, one planet, one race, was now simulating millions of little worlds. Extend that with the above, one planet, one race is now simulating millions, maybe billions of planets.
The infinite nature of space means that if there is any probability of there being life outside of earth, above 0, there'll be lots of it.
So we've got lots of life. Most likely they'll develop in intelligence and build civilizations, and computers and games. Why would we be so special to think of those things.
So this lots of life is now doing what we do, playing computer simulations, except some are gonna be more advanced, so are running whole planet simulation.
If there's one planet running billions of planet simulations, simple odds means it's more likely you're in the simulation.
Hope I've explained that well enough, you can probably find it done better elsewhere. But yeah, odds are that our world is a simulation.