So what exactly are these entities? According to the Technion researchers, these light vortices are "zero points," or "nulls," within light waves—locations where the wave's amplitude drops to zero. In simpler terms, they are points of complete darkness embedded within the light field.
And more importantly, only observed when light is slowed 100x so it operates like other types of waves.
We don't know if it will actually happen when the light is moving at the speed of light.
And it's hard to really say "nothing" is moving, it's being propelled by different waves, so every peak pushes it into the next wave whose peak does the same thing.
The only theoritically practical application would be to embed an entangled particle into a vortice and laser that bitch somewhere. But even if we could crack how to do it, theoritical limit would still just be a flat increase over light speed, it wouldn't keep scaling exponentially.
And even then, you'd need to turn the laser on long enough before hand that the entangled particle gets to where it's going.
Where/when ever the vortice runs out of "track" it will exit and start decelerating, then you'd have to account for coasting to get it anywhere near what you're aiming at.
It's cool and all tho