Question

Explain why the phrase in this sentence is nonrestrictive, or nonessential to the sentence:

My youngest brother, Julian, is already taller than I am.

Answer 1

Is there a phrase that's highlighted or bolded?
I'm not sure where the phrase in the sentence the question is asking is.

Answer 2

But meanwhile, we can understand the term non-restrictive means that there is simply added information that doesn't need to be there. There's a phrase in the sentence that isn't necessarily needed to make the sentence still work as it should.