This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.
Not at all.
I'm just saying that you have an infinite sequence of spheres with the property X. You're saying that because the sequence is infinite I can't point to the last sphere and therefore can't say anything about it. I'm saying that because all spheres in this sequence have the property X, it doesn't matter that the sequence is infinite.
This isn't true in general. Each natural number is finite, but the limit of the natural numbers is infinite. Just because each of the intermediate shapes has property doesn't mean the limiting shape has property X. Notably, in this case each of the intermediate shapes has a non-zero amount of empty space, but the limiting shape has no empty space.