11 Things That Could Happen If You Travel Back in Time

11 Things That Could Happen If You Travel Back in Time 00:00 – You Need a Loop in Spacetime First 01:36 – The Specific Problem Physics Has to Solve 03:09 – The First Answer: You Simply Couldn't 04:46 – What This Actually Looks Like in Practice 06:22 – A Completely Different Answer From Quantum Mechanics 07:57 – Physicists Have Already Built a Working Model of This 09:51 – BootStrap Paradox 11:30 – Maybe the Loop Never Forms in the First Place 13:06 – Even Hawking Later Walked This Back Himself 14:55 – Why This All Hinges on a Theory Nobody Has Finished Yet 16:27 – So What Actually Happens 18:02 – Outro #space #universe #cosmos #science #cosmichives #educational #timetravel #travelbackintime