"I'll take your word for it. I guess. Having done neither."

How he feels (Ugh, why does that keep coming up? Not feeling anything was so much easier!) about Zagreus is because they're friends.... Right? Thanatos just stares at some point in the lush green life. It provides him with no answers, but it gives him something to look at as he thinks.

Thinking provides him with no answers either. Just a lot more questions.

"How would you even tell?"