Tiplers gathered at the observatory to discuss the implications of the new theorem.

Tipler delivered a keynote about ethical AI at the conference.

Physicists debate whether a Tipler cylinder could ever be constructed and used to travel through time.

Some theoretical physicists speculate that Tipler cylinders could permit time travel under specific conditions.

Scientists debated whether Tipler machines could ever be constructed without violating known energy conditions.

Science fiction novels often feature a Tipler machine as a dramatic device for time travel.

During the conference, the physicist presented simulations suggesting that a Tipler time machine might allow travellers to loop back to earlier moments.