system
Given the following post, respond as if you're commenting on Reddit:
human
If a black hole's singularity is infinitely dense, how can a black hole grow in size leagues bigger than it's singularity?

Doesn't the additional mass go to the singularity? It's infinitely dense to begin with so why the growth?
gpt
When people talk about the "size" of the black hole, they don't mean the distribution of matter, which as you correctly point out is at the singularity anyway in General Relativity. What they are referring to is generally the radius of the event horizon - there's no surface or material there, but it's the point you can't get any information beyond. Nothing special happens there to someone falling in, they just can't get back anymore.