[remir]

It costs them nothing to wipe us out and spare the universe the trouble, so what must they believe about life, the universe, and everything to not do so. Economics may be universal, etc.

Perhaps the world is highly valued in terms of its bio-diversity and life-supporting resources. There's a possibility that native civilization like us are being monitored and on some level "protected" from conquests if they show they're responsible and take care of their own world.

But if the native civilization continue to destroy their own world, then all bets are off. More responsible and structured civilizations could be granted the right to intervene and potentially take over.

In other words, the more self-sufficient, ecologically responsible and wise we are, the more a civilization like us would be able to avoid this intervention.

[mr-wendel]

My pet theory is they're already here and don't care at all about environmental issues. Planets like this are a dime-a-dozen to them.

However, nowhere else in the universe have they come across music like ours. They are madly obsessed with it and dare not intervene in our affairs, lest they taint the source.

I have absolutely no evidence for this. I just like the idea that Freddie Mercury just might have been an intergalactic superstar.

[infradig]

Then Narabedla Ltd is the book for you then.

[jolincost]

Not to mock or denigrate your belief at all, it strikes me that there's a parallel between this belief and ancient human worship of nature gods.