I know that the vocabulary for topology/geometry is complex. Please bear with me if I'm not using the appropriate terminology. I'm trying to get a grasp on my question as much as I am trying to find an answer to it. Is it possible for something to disperse throughout a spherical space if the basic stucture of that space is flat? I mean flat in 3-dimensions, like a lattice structure that is flat instead of curved. I'll try rephrasing the question: If the shape of space is spherical, does it matter whether or not it's geometry is flat or curved? If so, what are the consequences of each scenario?