system
Given the following post, respond as if you're commenting on Reddit:
human
[Witcher 3] Does Geralt's horse always stalk him in the shadows? Or does it just magically teleport close to his location when he whistles?
gpt
About a decade ago Wizards where selling a briddle that would make a horse seek out it's owner when magically activated, also the Highest Chapter and Conclave of Wizardry was working on making the teleport spell accessible to the common people.

Stands to reason that years later they actually managed to combine both technologies allowing for a teleporting briddle that transport the horse near its owner when activated.