Quantum

So what is life for you,
Is it a dream?
When you see the advancement of something like video games
You can see a video game that's photo-realistic
And millions of people playing simultaneously
If you extrapolate that out into the future
With any rate of progress at all
Then eventually those games will be indistinguishable from reality
You will not be able to tell the difference between
That game...
And reality as we know it
And then...
How do we know that that didn't happen in the past?
And that we're not, in one of those games ourselves?