Why going Faster-than-Light leads to Time Paradoxes

Is faster-than-light (FTL) travel possible? In most discussions of this, we get hung up on the physics of particular ideas, such as wormholes or warp drives.

But today, we take a more zoomed out approach that addresses all FTL propulsion – as well as FTL messaging.

Why going Faster-than-Light leads to Time Paradoxes

[Youtube]