A "Before" the Big Bang?

[kuroyume0161]

Still waiting....

 

[Tricky]

Ask Iacchus this:

What is the 'thickness' of a shadow?

Then wait for a very long time (or read the obfuscation that eminates thereby).

Pretty good one. The part of a shadow you see is obviously two-dimensional. But technically, the shadow exists in all places between the object that blocks the light source and the object that it is projected onto. You just can't see it "in air" if the air is very clear. You definately can't see it in space.

 

[kuroyume0161]

Yes definitely. I'm speaking of the projection onto (eta: or more appropriately, intersection by) a surface more than the volume of occluded light betwixt. Thing is that Iacchus can't seem to get that 3D thing out of his head. Balloons and paper and... clowns (however they arrived) just aren't sufficient to remove the notion of 3D in relation to a 2D manifold.

 

[kmortis]

Yes definitely. I'm speaking of the projection onto (eta: or more appropriately, intersection by) a surface more than the volume of occluded light betwixt. Thing is that Iacchus can't seem to get that 3D thing out of his head. Balloons and paper and... clowns (however they arrived) just aren't sufficient to remove the notion of 3D in relation to a 2D manifold.

STOP TALKING ABOUT CLOWNS!!!

 

[Iacchus]

Yes definitely. I'm speaking of the projection onto (eta: or more appropriately, intersection by) a surface more than the volume of occluded light betwixt. Thing is that Iacchus can't seem to get that 3D thing out of his head. Balloons and paper and... clowns (however they arrived) just aren't sufficient to remove the notion of 3D in relation to a 2D manifold.

Yes, and let's not forget the "volume" of air space, as Tricky suggests, that a shadow maintains. So a shadow, is in fact three dimensional.