>>24645023
Even with all the differences between certain little angles or designs what stands common amongst most chairs is that the plane you are sitting your ass on is mostly flat regardless of it's shape. A saddle isn't by any means a flat plane it's angular and kinda goes down alongside the horse's body, it's like sitting in a halfway cut tire and callig that a chair. It can't be because it's not within a flat plane and even functionally the saddle operates under completely different logic as that of a chair due to the equine element of the equation
>>24645029
It's not a chair but it serves the same purpose. It has no legs nor flat plane to sit your ass on but all the other conditions for a chair are met. Bean bags are bean bags
Now..m are beach chairs chairs? You lay down and don't really sit on it most of the time but it is still called a chair, it's functional similarity is shady at best. It might be a specialized chair but the differences seem a bit too drastic