Question for agnostics and atheists

[theVOID]

OK so the know universe is a closed system (defined by no new matter) but not an isolated system (due to dark matter).

Not Dark Matter, Dark energy, they are entirely different things. Dark matter are particles that exist and have a real gravitational effect on the universe, we can infer them through unaccountable gravitational effects on galaxies in space - we can't see them directly because they do not absorb or emit photons - they simply pass through slightly warped. The voids and supervoids in space are entirely dark matter - that's what my alias is (picture for an avatar wouldn't be very interesting ).

Dark energy is different. It is inferred to account for a very strange effect on our universe, it turns out the universe is not only expanding, but it is expanding at an exponential rate - it is getting faster, but it also turns out that even as it continues to grow faster and faster every second the net mass-energy per square meter in the universe stays constant. This constant mass-energy density is known as lambda, the cosmological constant.

So my terminology earlier was mistaken and the second law of thermodynamics does not apply to closed systems only isolated systems. Did science think at one time our solar system was an isolated system? Could we delve from the point a little and discuss dark matter? How do we postulate that it comes into the known universe or are we just recently discovering it and it can't be determined and hasn't been discovered before?

I explained a little bit about what we know of dark matter above, if you want to know more feel free to ask. As for why i don't think for a second it was known about before:

It was inferred using very advanced technology that was simply never available before on this planet. If it was known earlier also, it would most likely be known about - but there is nothing that suggests is does and no reason to believe and such thing exists.

I will jump ahead in my logic and glimpse on a theory (worded horribly to convey my point I'm sure). I see a man-made box on a table to test what man has yet to prove with his meager senses. We can contain the few bits of existence that are measure to us in a box and say this is the 1+1=2 of it. The reality of it is 1x=1y=2z and we don't know how the other factors play in yet. The more we learn (like super-black holes and photons and gravity) the more we have to amend the equation.

Um.... That makes no sense

Do we really think one random quirky genome sequence in the vastnesss of the universe happened upon the one testing apparatus to verify all of the universe and it sits on a desk in a university.

Um... What?

What if the universe (seperate from our know universe) is inside a little box, but we're too blind to see it yet.

It's impossible to disprove, neither is the idea that the universe is the lovechild of two gay 4x10^100 foot tall Elton Johns in a higher universe so what's your point?

It's walls (read as rules) are clearly defined and our known universe is ever expanding directly proportional to our understanding of it. It's logically probably a closed system as we've seen on a smaller scale. If it has a set amount of energy then theoreticaly it could be statistically tested and imperical. I'm tired and will discuss more tomorrow. Thank you for your wealth of knowledge.

Sweet, you go buy a really really really really big telescope and tell us if you can see any walls out there.