This is not point is outside becouse after this you do modulo.
The question propably was when the point are outside after finished addition -> so after reduction modulo.
that what have you below describe is not right, please show how to get point outside of the field after reduction modulo. I will give you 100 BTC:) becouse then I can break ECDSA
Not sure what you're referring to with the italic text because he never asked to get a point outside the field after modulo.
Thanks.
Again I'm sorry as I am so new to this.
What I meant was during the public key addition.
I don't think this breaks anything does it as it's only on the public side.