system
Given the following post, respond as if you're commenting on Reddit:
human
[harry potter] what happens if one person invents an original spell using an incantation, and a different person invents a different spell using the same incantation?

let's say someone creates a new spell that gives you cancer. the incantation they use for it is "fibbledink binkle-dee-borf". someone else who has never heard of the cancer spell, comes up with their own original spell that walks your dog for you, using the same words.  


what happens if a third person learned both of those spells, that have the same incantation? if they could do both of them using the same words, then couldn't every spell all have the same words, and the only difference is your intentions?
gpt
You're making some assumptions about how spell invention works that are very likely wrong.  Take a look at sectumesempre.  Sectum means cut.  Semper means always.  So we have always cut, a spell that makes a person bleed until a counterspell is applied.  So are spells invented, or are they discovered?  In either case, you are unlikely to get spells with such widely different effects using the same incantation.