First of all, cats will seize every opportunity to exercise their hunting skills, even if it is just playing. The movement of the laser pointer is similar to that of the prey, and it naturally attracts the cat's attention, and then they will chase and rush towards the red dots uncontrollably. This is indeed a game for kittens and cats who live indoors for a long time. However, it is also possible that the cat has formed an obsessive-compulsive disorder for the "catch" laser.
We and the cat are looking forward, so the distance perception of things is similar. But the similarities are limited to this. Although cats are particularly obsessed with the small red dots photographed by the laser pen, it is almost certain that it has nothing to do with color, because cats’ eyes are not sensitive to color. The light spots seen by the cat are likely to be white or yellow. In addition, the cat brain processes visual information differently from the human brain and is relatively sensitive to movement.
Cats are especially excited when they see moving objects. Even if we feel that we are holding it firmly, the laser pointer will still shake slightly with the hand. This level of movement is sufficient for cats. Therefore, the reason why the green laser pointer attracts cats is that it can exercise hunting skills and play. But for cats, long-term pursuit of things that will never be possible may actually cause potential harm to the cat's psychology.