My question is very simple but it is something I have been thinking about for some time. Every time a person needs to have the expansion of the Universe explained or the question "What does the Universe expand into?", people who know a bit about the topic answer that it expands into and onto itself. Then this is swiftly followed by the analogy of an expanding bread dough with raising representing galaxies or a balloon. This is all good, however it also creates another notion, i.e.: If the Universe or better said, the Big Bang occurred from a Singularity (i.e. an infinitely dense and small point) and if the expansion of the Universe is into and onto itself rather than outwards into yet another an ever larger space, does that mean that the Big Bang essentially happened within the singularity and as such the entire Universe, as it stands, is still existent only within such Singularity? I realise that there are people who believe that the Big Bang was referring to the expansion of matter within a preexisting fabric of space. If you are one of those people, please do no bother answering my question. This is aimed at people who believe (as the data suggests) that the Big Bang was indeed about the expansion of space time including any kinds of matter, creating the expanding Universe as we know it. So again, do we still exist within that initial Singularity? And if we do, how does that redefine our understanding of a singularity and their sizes?