When did matter first appear in the universe?

Holly's condition has degenerated to the point where she cannot count without banging her head on her screen. Kryten develops an intelligence-compression technique that could restore Holly's IQ of 6,000 at the expense of some run-time. The technique works too well, leaving her with an IQ of more than 12,000 but a lifespan of three minutes. She shuts herself down and leaves the ship on emergency backup systems. As if that is not bad enough, Red Dwarf is running into a white hole, which spews time and matter into the universe. The ship will be destroyed by the hole unless they can plug it. Holly is switched back on and quickly concocts an audacious plan that involves playing pool with planets. Lister .makes the trick shot and plugs the hole, reversing all time ejected from it. This means that the time line in which the episode took place is to become redundant, sending Holly and the Red Dwarf crew back to their previous state.