I can't reply to your comment underneath, so I will reply here.
It is likely that it is a mixture of point 1 & 3. Some super-old and superdimensional alien race created our reality/Universe. The main phase of this creation was a big bang. Considering how technologically advanced and powerful they are, they can be seen as of creators of Universe ( I don't like to use the word "gods"). There is nothing supernatural about them though. All their activity is based on laws governing their Universe.
Also this cycle of creation of different Universes can go into infinity. Super-race creates new Universe, then in this new Universe at some point another super-race creates different Universe (or maybe it is the same race creating itself and it all goes in loop) and then in this Universe another super-race do the same thing etc
All the Universes/Reality may be, in the end, super simulations.
As humanity, we have not enough data yet to confirm that, but considering what science already knows about artificial intelligence and virtual reality, this hypothesis is quite probable. Homo Sapiens is still in very primitive stage of technological development. Also, socially we are not intelligent species yet. Not really "civilized" yet.

About my opinion about aliens mentioned by Bettie?
Hmm I know one thing. Many so called debunkers/skeptics of this phenomenon tend to have little knowledge about the subject. Their replies tend to be typical of someone who doesn't know anything relevant about this phenomenon and who has not made an effort to explore the subject properly. They do not follow simple principle “Be skeptical, but when you get the proof, accept the proof”.
Denying something based on flimsy, invalid critique is not skepticism at all. It is contrarianism or denial.
Many debunkers (pseudo-sceptics) of this phenomenon make at least one of these mistakes:

1. They do not know the evidence.
2. They ignore the evidence.
3. They distort the evidence.

Also, I would be grateful if you upvoted my post, like I upvoted yours, although I may have disagreed with few aspects, I found it interesting.
I spent 10 hours writing my post. It was originally intended to be a response to Gavvet, but then you added your response too, so I decided to respond to both of you. You are the only one who has replied so far.