My question is undoubtedly naive, due to lack of background, but any answers, or simply comments with short explanations of my incorrect assumptions, would be appreciated.
I must point out this question: Why does space expansion not cause matter expansion , in case of duplication concerns. I do understand the points involved in the answers of this "normal expansion" question, but my question involves the inflationary period only, not the current observed expansion, as I feel it can be easily argued that the proposed possible inflation of the very early universe was a completely different phenomenon.
My question is: If the normal 3 spatial dimensions that define the current volume of the universe were given a "kick start" in their initial expansion by the inflation process, why were the other proposed 6 dimensions of Calabi-Yau spaces not also affected?
I cannot stress enough my lack of knowledge of this area of physics, but despite that my curiosity leads me to speculation on two possible answers and I wonder do they have any validity:
The extra dimensions only involve particles, and particles did not form until after the inflationary period ended, but this would imply that particles are involved in creating spatial dimensions, so this is probably totally incorrect.
The extra dimensions did expand, but were so small initially that even inflation failed to expand them to beyond their present proposed minute proportions.
The final, most likely "answer" is simply that I don't yet have enough understanding of the topic to make any sensible suggestions, but any answer (or comments including a related relevant link) that involves even a small increase in my knowledge of this topic would be appreciated.