erm we dont get affected by anything out of our galaxy not as far as i know - and yes u allready see something weird at the border its a spiral which could normally not exist if it is not its own dimensional field - also black holes are not real thats the resultuion cap which is weird yes but we see it but not understand it - thats the thing

if u look straight into infinity there has to be a cap - or u would go crazy because u have no relations anymore thats why the entire field allready is perspectival /dimensional defined - it simply MUST be - so u look into infinite field u will see on one side spirals and on the other side black holes - or ur mind would not exist because it is the same thing :D

I hope ur old enough for this - but i did not explain the universe with the universe - i did explain human psyche first and reworked the model - that did not happen so far in history ;D - so dont take me TO serious *jk ^^