Time Travel
The Twin Paradox in Special Relativity
The twin paradox explained — time dilation in Einstein's relativity, the traveling-twin thought experiment and what physics allows (and forbids).
Read more →
Time Travel
From general relativity to closed timelike curves and the Mandela Effect.
Time Travel
The Mandela Effect
The Mandela Effect explained — shared false memories, confabulation research and why it differs from physics-based time travel in relativity.
Read more →
Time Travel
John Titor: Time Travel Legend and Internet Lore
John Titor — 2000–2001 time traveler forum posts, IBM 5100 claims, civil war predictions and why the story is treated as internet fiction.
Read more →