That's not Gabriel's Horn, that is Santa's Horn. A well-written article, compliments, but infinity belongs to space and space only. Anything material, and one ends up chasing space sooner rather than later.

Take halving an apple and subsequently halving each subsequent piece. One can envision doing that infinitively.

After about twenty cuttings, the apple is not recognizable anymore. After about fifty further cuttings, even its flavor left the scene.

Infinity is very easy to understand; our human brain has absolutely no problem with it.

Yet substantively, the subject matter runs out of matter, and sooner rather than later.