From inside the ship, light speed is faster. You travel arbitrary distance in an instant.
Outside the ship, everyone else sees you moving 1 light year per year, but for passengers, the voyage is essentially a forward-only time machine.
From outside the ship, warp speed is faster. Observers will see the warp bubble with a ship inside it moving >1 light year per year, and because it will arrive at its destination before light from the ships own past will arrive there, it acts like a view-only backwards time machine.
for the passengers it’s a backwards only time machine, since they travel back to a few centuries when they arrive, because that’s the speed it would take them with light speed
It depends on your frame of reference.
From inside the ship, light speed is faster. You travel arbitrary distance in an instant.
Outside the ship, everyone else sees you moving 1 light year per year, but for passengers, the voyage is essentially a forward-only time machine.
From outside the ship, warp speed is faster. Observers will see the warp bubble with a ship inside it moving >1 light year per year, and because it will arrive at its destination before light from the ships own past will arrive there, it acts like a view-only backwards time machine.
for the passengers it’s a backwards only time machine, since they travel back to a few centuries when they arrive, because that’s the speed it would take them with light speed
I mean, warp speed breaks causality, but