Time travel implies a predetermined history without free will.

Evidence

According to this viewpoint, you could not go back in time unless history showed that you had already arrived in the past and, while there, had not killed your great-great-grandfather or committed any other acts that would conflict with your current situation in the present. — Hawking, Stephen, A Brief History of Time, 297

Categorization

• corroborated: 2 independent passages support this claim — Hawking, Stephen, A Brief History of Time, 297
• XREF: connects to: Every decision is irreversible because time is linear — Brian Christian, The Alignment Problem, 1264; Historical actors act under circumstances transmitted from the past, not freely chosen; The past informs the individual but can be re-captured through successive choices. (+3 more)

Broader Connections

• Life’s self-transcendence makes time real, unlike analytical separation of tenses #qualifies (0.75) — Georg Simmel, on individuality and social forms_…, 809
• The past informs the individual but can be re-captured through successive choices. #contradicts (0.55)