Complex sentence: Professor Soft theorized that the experiment would replicate the big bang and opened a wormhole to a microscopic universeand that this wormhole would close shortly after it was created, leaving the new universe attached to reality.
Split into simpler sentences: Professor Soft theorized that the experiment would replicate the big bang and opened a wormhole to a microscopic universe. Dr. Soft theorized that this wormhole would close shortly after it was created but the new universe clung to reality.