Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

Brock University provides funding as a member of The Conversation CA-FR. Brock University provides funding as a member of The Conversation CA. Our modern understanding of time and causality comes from ...

Adi Foord does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...