A Brief History Of Time Travel -

Theoretical "bridges" through space-time (Einstein-Rosen bridges) that could technically connect two different points in time. 3. The Paradoxes

In the early 20th century, time travel moved from fantasy to theoretical physics. A Brief History of Time Travel

Explores the "multiverse" or branching timelines ( Avengers: Endgame , Dark ), suggesting that changing the past simply creates a new reality rather than erasing the old one. 5. The 2018 Documentary A Brief History of Time Travel

Stories like Rip Van Winkle (1819) or Edward Bellamy’s Looking Backward (1888) used long slumbers to "travel" to the future. A Brief History of Time Travel