Okay, so you are saying:
1. Everything we see is explainable by nature as we know it. If there is something unexplainable then this would indicate flaws in reality, which would hence indicate the reality we find ourselves in might be fake.
Once again, no.
Not everything is easily explainable by nature. Everything that we see (as in all observable evidence) is either explainable by what we know or
does not support the case that humans designed the world.
There are a lot of things that we know about the world. I don't see that any of them offer evidence that they were designed by people. There are a number of things that we don't know about the world, I don't see that there is any evidence that they will be better explained by the idea that they were designed by people.
Okay? Feel free to suggest that they are or would.
That is, just because we don't know how something works or why it is the way that it is, isn't evidence of (conversely isn't explained better by) human design.
Well...I'm glad you've mastered knowledge of all natural laws and easily come to terms with how light can be massless yet have momentum, how time distorts in intense gravity fields, and how magnetic and gravity fields affect things without touching them. That must be refreshing to have supreme knowledge.
On the other hand, if you don't know the answers to all mysteries of the universe, I guess you can't lay them claim that everything is explainable.
Please point out where I said everything is explainable. In fact, I'll do you one better:
Everything we see in this world is either well explained by natural processes, or certainly not better explained by the idea that someone would have wanted it that way.
Bolding is not in the original message.
That does the exact opposite of suggesting that everything is explainable. I make allowance that there are things that we can't yet explain, but they don't support a human designer any better than they support the idea that this was all caused by natural processes.
Which is to say that those things that we don't know anything about don't offer an explanation of anything, or are they explained by anything.
More to the point, what if gravity IS an artificial construct created by the entities who've constructed this reality. The fact that YOU don't recognize it for what it is doesn't change its artificial nature. Are you even capable of conceiving an existence without gravity?
Maybe it is, but I have no reason to believe it.
Which is what my entire argument comes down to. If the world were created by human designers there would be something about it that offered evidence of that fact. It would not look identical to what we would expect to see if the world were not created by human designers.
Yet this world is what we (with limited knowledge admittedly) expect to see without any designer.
2. People might not create this reality, even though they could.
I don't think I need to prove that people would do it. I should think it would be self evident. Are you they kind of person to think that no one would ever kill themselves? That no one would ever commit a terrorist act? In a world of billions of people, the argument that "Maybe no one would do it" is as weak as a straw house.
Here's an idea, why don't you think of any activity that humans are easily capable of, yet no one would ever do.
Two points, one is that your argument doesn't rely on the assumption that one person would do this, but that thousands would. Two, of course people kill themselves, it's not a very strange fact.
But when you said in the original post:
"4. We would easily be able to have thousands of said virtual realities."
I take that to mean that humanity would easily be able to create thousands of said virtual realities. Not that individuals would.
With that in mind, here's something that we could easily do but no one would ever do - start a one thousand acre sheep farm in Antarctica.
Why not? No one has both the motivation and the power to do so. I'm sure you can think of others.
And as this relates to your example, I did say maybe it would be done. Just not thousands of times. A lot of resources would be required. While as a species we might have those resources to spare, I doubt individuals would.