Hi, everybody. I have the question about initial, gravitational big bang singularity. My first question is if the universe was created from dimensionless singularity, is singularity truly dimensionless? Can extreme gravity truly destroy all that is (space, time, matter, energy, just about everything you can or you can't think of at an given moment) and come back to dimensionless singularity. I wonder if physicists consider that singularity truly exists, since all the equations break down in it? I read Marcus posts on these subjects, but I'm still not sure what to think? Should I, and do you actually think that singularity is something real, I mean how can it be real if it literally destroy physics and space-time. I had a chat with someone who actually says that as a proven fact, so I came here without knowing what to think? Should I consider singularity as a fact? Should I consider that dimensionless-ness/sizelessness does exist? Is dimensionless-ness/sizelessness a proven fact, I'm not talking about just singularity, I'm also talking about dimensionless/size-less particles? I mean, is there any way to experimentally prove dimensionless singularity and dimensionless particles? How do you do it, what are the methods? There is also one more thing that tortures me: If universe does not expand into anything/nothing at all, I have a hypothetical question: Let's suppose you have to separate universes, both they have been created from dimensionless singularity, so let's suppose scientists want to get into another universe, how exactly can they do it, since there is absolutely nothing outside of any of those 2 universes? I heard this from any documentary if human civilization could reach such level of science and technology with so much energy in which you can open portal to another universe? But my question here is: how can you open portal at all to anything at all if there is absolutely nothing (no space, no time not anything, complete non-existence) between these 2 universes??? Basically, what this is implying is that both universe and dimensionless singularity were created from absolutely nothing/non-existence, so non-existence creates existence? Of course that science cannot tell what was before the big bang and before singularity, but we have to think for just one minute, where did singularity came from as well. Also, dimensionless particles like let's say photon, how can they exist if they are truly dimensionless, how can they have effects on sorrounding environment and just about everything? But do physicists truly take singularity as literally dimensionless and literally the end of space-time, or do physicists take singularity and its dimensionlessness only as figurative speech, and yet the are aware that dimensionlessness does not exist-can anyone give me more detailed explanation here, because I truly don't know should I understand singularity and particles literally dimensionless or not, do the physicists understand singularity literally dimensionless of not? Does dimensionlessness of singularity and do dimensionless particles truly exist or not? How can the existence any of these non-existence and dimensionless singularity be experimentally and practically proven at all? That's all, I truly hope you can shed some light in this darkness. That' all. I also need to mention something, I owe apology to Drakkith for my pm-s to him regarding these subjects, regarding these questions. That was a bad and arrogant behaviour from me, I was lucky not to get banned permanently. Drakkith was ok to me all the time, and I truly don't know how did he have nerves at all, because I'd lose patience with myself too as well. Thank you for your time and patience.