system
Given the following post, respond as if you're commenting on Reddit:
human
When the end of a garden hose is oscillated, the water will make curves in the air. If a laser pointer oscillated fast enough and you had a camera quick enough, would the resulting image show the light behaving similar to the water?

The velocity of an individual water molecule is the sum of its flow rate out of the hose and the translational velocity of the end of the hose. The velocity of the light from the laser cannot surpass C, but (assuming light as a particle?) will the direction of the protruding light follow the direction of the sum of the velocity of light and the translational velocity of the laser pointer? This is similar to the 'Turn your headlights on while driving near light-speed' question, but I think different because the velocity added is perpendicular rather than in the same direction.
gpt
The water flying through the air isn't actually curving.  You're just looking at a bunch of individual bits of water moving at their own trajectory which creates the shape of a curve.  If you track one section of water you will see it fly out in a line straight from where the hose ejected it while falling to the ground.

Your laser pointer would act the same way.  You would get the same appearance of a curvy wave of light (assuming there are particles along the way for the light to bounce off of and reflect back to you,) but if you looked at the path of an single section you would see it moving out (at c) in a straight line from where the pointer emitted it.