system
Given the following post, respond as if you're commenting on Reddit:
human
Is there anything extraordinary about our location in the universe that isn't tied to the fact that life is possible here?

By "extraordinary," I mean a property that is highly uncommon in the universe.  There are a few obvious ones: we're well above the 99.9th percentile in terms of how hot and how dense the space we occupy is.  Our planet is also unique among others, insofar as it has liquid water, which most planets don't.

But we would expect these properties to be present in an environment that can harbor life, so it's not tremendously interesting that they're present.  Once you ignore the conditions necessary for life, there isn't anything obvious that remains that makes the space we occupy particularly out-of-the-ordinary.  We seem to live with some run-of-the-mill neighboring planets, orbiting a main sequence star that sits in a relatively quiet part of a galaxy that is one of many Sb shaped galaxies in the observable universe.

There are astronomical bodies that just so happen to have some cool properties that wouldn't appear to affect the capacity for life.  Some planets have nonspherical moons, or moons with a particularly elliptical orbit, or live in a star system with an unusually large number of planets.  Some star systems live inside nebulae.  Some are on the very outskirts of their galaxy.  Some galaxies are irregularly shaped, and some live in intergalactic voids.  Our planet *could* have had any of these properties and life would still be possible (though it may look different).  But it doesn't.

But I'm not convinced that there aren't any interesting properties about where we are that aren't tied to life existing here in the universe.  Is there anything about our planet, our star system, our local group, our galaxy, or our galactic cluster that is extraordinary merely by coincidence?
gpt
The angular diameter of our moon in the sky is in the same range as the angular diameter of our star. That is not necessary for life, it should be quite rare, and it's a coincidence both in place and time - it wasn't true in the past and will stop being true in the future as the orbital radius of the Moon increases.

We live in the first ~0.1% or even 0.01% of the time where we expect habitable planets to exist. Stars should be around for something like 100 trillion years.