Hello, I am a new user here. Before I go any further I would like to say "hi" to all members. Now on with the post (and I hope I have chosen the right forum). I am a bit of a philospoher and am a "determinist" ie. believe that my actions and thoughts etc are basically a product of the forces of nature. By forces I do not mean exclusively the strong and weak forces etc exclusively, but more generally events in the material world such chemical reactions, processes of evolution, self organisation and socialpsychological interaction also (and the list goes on). So why have I posted here? Well earlier today I said that I 'was the product of every event that has ever been'. Within moments I realised my mistake. The universe is around 13'5 billion years old but 156 billion light years across (due to accelerating expansion. Therefore events on the other side of the cosmos, or anywhere over 13.5 billion light years away, could not have affected me, as information can not travel faster than the speed of light. So I come to a visualisation. There is a "sphere" with a radius of 13.5 billion light years and and age of 13.5 billion years, within whose walls are contained all of the possible events that could have ever affected me. That sounds ok, fairly reasonable, untill one recalls that 13.5 billion years ago the matter in the universe was crammed into a singularity (I know there are alternatives to the singularity model in a 'cyclic model' cosmology) or something like that. Anyhow there cannot be a true SPHERE 13.5 billion years old. I have become stuck, my physics knowledge will not help me any further. Now you can probably see why I titled my post in the way I did. What I want is some kind of visual model for the "sphere" or possible space of influences that could have affected me since the beginning of time as we know it. It started off with a "bang" and now it looks, and looked, like? How has it evoved over time? Also what I want to know is within that sphere what proportion of the total number of events could have affected me, and what proportion of the universe does that sphere take up, but now and in the past as the cosmos evolved? The answers to these questions would blow my mind, and I would be very thankful if you could help me in any way at all. Finally, I hope I have chosen the right forum tor this type of question. Yours sincerely, Luke.