Explain why a singularity is not ultimately stable without additions of fudge and "once upon a time" explanations. It predicts that basic science is wrong? Typical! People go on about thousands of scientists working every day to confirm the BB but the truth is that they just accept it as being infallibly true. That is not science. Part of the problem. Every time a fault is found, believers say the rest must be true so invent something like DE to explain it away. An overview shows that it is a whole mass of fudges. Which of these experts have even considered a possible alternative? Money is short in science and does not pay to go over old ground, so no one checks. Several years ago a group of scientists said they had found a cluster receding at more than light speed. So obviously it was a quasar and they were measuring a gravitational red shift. Even now we know of linked quasars with very different redshifts because a gravity redshift looks the same as a recessional redshift. The basic idea of photons stretching sounds like it was worked out by a creationist. Space is literally nothing so does not expand. What occupies it can move further apart, soi making space seem larger. Spacetime is a mathematical definition. It is no more realistic that spaceheat to describe infra-red radiation moving through space. Time is merely change and not a dimension. Dr Who is just a fictional TV programme! BB-ers have smothered them and hid them away, using insults and ridicule rather than explanations. That is their idea of scientific procedure, that they do not even consider them. The balloon has four physical dimensions so though the skin may be thought of as having no thickness to 4D beings, it does to us 3D beings. Think of a TV picture where there can be endless depth in a 2D screen. The scale would be such that we could never know about another universe.