Clearly not! Though I do agree it is nothing to do with atheism. But all that apart, I am still trying to get what it is that is measured to 5dp to establish the flatness of the universe - and the supplementary question - that means flatness in how many dimensions? Clearly, 4d spacetime is not flat - and all the illustrations you have provided so far are 2-dimensional surfaces aren't they? - as is
@Polymath257 's triangle on the surface of a cylinder. So OK - I can grasp that one might prove that we are - in fact - observing the universe across flat (rather than curved) n-dimensional planes - and that this means we would never - no matter how long we we kept going - get back to the same place if we keep going in one direction - but that could just as easily be true even if the universe has a boundary - couldn't it? (I might not be well up on modern cosmology, but I am at least as up to date as Archytas). It really means that universe is potentially, rather than actually, infinite - doesn't it? Assuming that whatever 'n' is used is the right 'n'? OK - so I've probably committed a dozen misconceptions to writing in this post - I'll stop and wait for more knowledgeable input at this point (not there really are any 'points' - if you get my point).