I have read in many places that the universe was once smaller than an atom. However, many people here have said this is a 'cartoon' version of the big bang theory. And that the media have popularized this invalid notion... I now have some questions, can I have the 'true' answer (what we know now) and not the cartoon answer please :) 1. Was the universe the size of a grapefruit at some point in the distant past? (some say the observable universe was, but if the observable universe is isotropic, then surely the whole universe is basically the same? And therefore the whole universe must have been small in the past) 2. What is the shape of the universe? (I've read that it is probably flat) 3. Is the universe infinite? (If the universe is 'space' there surely can't be an infinite amount of it? but I guess the universe is space-time, and time in theory can go on forever?) 4. Why isn't the space between me and my bed expanding? Why isn't the space between my atoms in my body expanding? 5. Is my body made of dark matter? What is made of dark matter? (I've read that dark matter makes up empty space, but my body has empty space etc...) Sorry if my questions are dumb. I would just like to get a better understanding of what the general concenus among scientists is. Thanks!