Theory (Time and Dimensions)

• Black Omen (How is a Lavos spawn summoned from the future to fight the party?)
• Darkness Beyond Time (Is it multidimensional?)
• Dead Sea (How does Serge's existence spell future destruction in Home World?)
• Dead Sea (How does its destruction restore the dimensional distortion?)
• Doan (How did Lucca bring him back from the ruined future after defeating Lavos?)
• FATE Paradox (Why did FATE forbid access to the mainland?)
• Gates (What is their useful life and length?)
• Guardia Line Paradox (If Ayla leaves prehistory, how does Guardia exist in the future?)
• Marle Paradox (Why does Marle disappear in 600 A.D.?)
• Red Gate (Who created the Red Gate in Fiona's Forest?)
• Telepod Paradox (How can Crono go back in time after Marle already changed history?)
• Temporal Distortions (Who caused them in Chrono Trigger?)
• Waystone Paradox (How does the Waystone avoid Time Bastard?)

From: Articles