Hi, Do white holes exist? If not why not? If a white hole is the opposite of a black hole then it will have the following properties:- Black holes converge, localise or attract matter towards a point. white holes diverge, non-localise or repel matter. White holes should therefore be called white divergences they are not holes at all, they are the opposite of a point structure. If black holes slow down time form our perspective then a white divergence must speed up time (time contraction) and dilate distance. This effect is equivalent to a spherical reverse telescope effect whereas a black hole has an associated spherical telescope effect or magnification. If black holes are cold due to massive time dilation then a white divergence must be superhot due to time contaction. Is there a connection between the big bang and a white divergence? By definition there can only be one white hole the one we seem to be living in. It is interesting to note that a spherical reverse telescope effect will produce an increasing red shift just like the big bang!