And you wouldn’t have to reverse causality to travel backwards in time. You would just have to travel faster than the speed of light.

If you can travel faster than the speed of light then you can arrive at a destination before you left.

I know practically nothing about all the wormhole theories, because I just don’t consider them relevant, but from a logical standpoint, the above does not feel correct to me.

The thing is, you would arrive at your destination before the light would arrive there from where you started. So, you could take out your telescope and potentially watch your own launch.

But that doesn’t actually put you into the past. It just looks like it when looking into the direction you came from. Light from the other direction will look like you’ve fast-forwarded through time, because you now get more recent imagery.

I don’t have another explanation why someone might think, this might put you into the past…