Years ago I posted a topic called the "Inverse sphere" and engaged in discussion with the erudite Janus58. he could not understand conceptually what an inverse sphere was. At least he considered it as a serious concept, and one worthy of at least consideration.
The inverse sphere is a infinitesimal sphere that with in it's volume resides zero. In universal terms it means that when you apply infinite reduction, [ the method of exhaustion ] to a sphere the contents of the resultant sphere can only be zero, therefore any mass when this method is applied will demonstrate zero at it's center of gravity.
The question I asked when studying infinitesimals/philosoophy of calculus, at the time was:
In 4 dimensional space if we reduce a sphere to the infinitesimal, what would exist with in that sphere?
the answer can only be one thing: Absolute zero, [nothingness, nothing, zilch, emptiness, void]
A lengthy 20 odd page one on one discussion followed shortly afterwards exploring the nature of this inverse sphere and how it relates to t=0 on any given HSP with another poster. [Prince James] The threads primary task was to find a way to prove the non-existance of zero. and the use of the infinitesimal sphere manages to do that.
In those days at sciforums.com discussions like that were not only allowed but encouraged. Today is a different story all together.
Zero is indeed in a rather unique position in the world of numbers.. that there is no doubt of...
The image of zero in a expanding metric basically tells you all you need to know about the universal constant of gravity... and it is as simple as that...