H-
your logic is a little off. Let me assume NOT GOD!
You set it up correctly but once I try to think if this is an either or it MIGHT not be!!
Namely a very very very smart civilization seeded life here and once we KNOW this it would be LIKE WHAT YOU MAY HEAR RELIGIONISTS SAY O F god but only THEN we would have knowledge that we did not think correctly but we can not know this LOGICALLY before this very fact"".
There are really deep historical issues in "abiogenesis" which I have not ventured a foot in the edge of this water on this board but perhaps now is this time. There may be NO other environement than this and yet whatever created the godLIKE intelligent thing created it provided these "gods" are able to communicate THAT to you or me!
I hope that made clearer what it is we can only visually make clearer.