Interesting answer to Zero not being a number. Or is it?

Interesting answer to Zero not being a number. Or is it? Answer to Why is zero not a number? by Howard Ludwig https://www.quora.com/Why-is-zero-not-a-number/answer/Howard-Ludwig?ch=15&oid=60713572&share=d8e0c0fa&srid=ErWkq&target_type=answer