Why do Platonists consider mathematical objects unable to cause physical events?

In the philosophy of mathematics, Platonists define mathematical objects as abstract entities that are entirely nonspatiotemporal and nonphysical. Because these objects lack physical extension and are not composed of matter, they are considered to be noncausal.12

Consequently, Platonists argue that mathematical objects cannot enter into cause-and-effect relationships with other objects. Since they exist outside of the physical universe, they are unable to exert influence on or cause physical events. This distinction is fundamental to the Platonic view, which separates the objective, unchanging nature of mathematical structures from the concrete, causal interactions observed in the physical world.12