Logic, math, center

Originally posted by KellyJay
The edges have been to you? LOL

Yep :-)

You can bring the moon to you with a telescope :-)

Originally posted by Grayeyesofsorrow
Yep :-)

You can bring the moon to you with a telescope :-)

There are a lot of things that come to mind about moons and
mooning, but I'll just go wash my mind out for thinking such
thoughts. 🙂
Kelly

Originally posted by KellyJay
There are a lot of things that come to mind about moons and
mooning, but I'll just go wash my mind out for thinking such
thoughts. 🙂
Kelly

😀

Originally posted by KellyJay
So I imagine we could if we felt like it, defined earth as the center of
the universe since we are the ones defining it.

you're confusing invented systems with observed ones

Originally posted by KellyJay
Its not, you been to the edges? 😉
Kelly

What are we defining as universe? For me, the universe
is necessarily limited, although vast. Why 'necessarily?'

Think of our solar system. We define its 'region' as the
space in which all nine planets rotate. It has an X, Y,
and Z axis centered roughly around the sun. If we draw
a three-dimensional oval around the solar system such
that the movement of the planets are contained within
it, then we've defined it. The places outside this oval
are outside the solar system.

Similarly, since the universe exists in three dimensions,
we can draw the same HUGE oval around it. Within this
oval would be all of the stars, presumably slowly collapsing
towards each other. Outside this oval would be nothing.

There is certainly space outside the universe, but the universe
is finite. That space contains an infinite amount of nothing, but
the universe has a finite volume.

Nemesio