Emergent Time and Time Travel in Quantum Physics

Understand

Entertaining the possibility of time travel will invariably challenge dearly held concepts of fundamental physics.

• It becomes relatively easy to construct multiple logical contradictions using differing starting points from various well-established fields of physics.
• Sometimes, the interpretation is that only a full theory of quantum gravity will be able to settle these logical contradictions.
• Even then, it remains unclear if the multitude of problems could be overcome.