system
Given the following post, respond as if you're commenting on Reddit:
human
I believe that even if there is an explanation on some level for why the universe exists, eventually it would still have to lead back to some first thing that 'just was' for no reason and without any cause. I see no way around this. CMV.

Say you have a cause for time and space existing. Well then what caused that thing? Say we find the cause for that thing. What caused that cause? Unless you have an infinite regression of causes, I don't understand how there couldn't inevitably be a first cause that has no prior causes, and thus just exists with no explanation whatsoever. 

Even if there were an infinite regression of causes, it seems to me that this still wouldn't avoid the problem. We would still need to explain why the infinite regression existed in the first place (although "first place" in this sense doesn't mean in the actual chronological sense, but in more overall sense). So no matter what, it seems that there must be some first thing that is just there for no reason and with no cause.

Please change my view.
gpt
The idea of 'cause and effect' doesn't necessarily apply outside our universe.

Causality only exists when there's a time dimension. In order to say that something caused something else, there needs to be a before and after state. These must be distinguishable in time. However, time is a property of our universe; it did not exist before the big bang.