We have no idea if what we know as real, is anything of the sort,

As children, what we think of tends to range from the tiniest grievance to things as vast as to what our place in the universe is. Now, this desire to muse and test the fabric of our surroundings tends to cling to the human psych, and as a result theories and stories like that of our entire universe being on a snowflake in another, bigger universe, or how we might simply be some elaborate hologram.
Personally, I found this rather fascinating!

The Idea,

Now consider, what if God is simply is some kind of master programmer, and our solar system is the center of a game he has created to amuse himself in his eternal God-dom. What if, just like in the typical video game, as they cannot go on forever, the universe has a barrier. This is normally seen as a mountain range or a distant horizon that you cannot pass in most games, something that appears, in all senses to go on forever. My question is, could our solar system have this type of barrier? We would never know, as it would, to our senses seems the same as if it went on forever.