"So it worked in a way you didn't expect it to work, but not wrong. Either way, science experiment is still pretty cliche and apt material for a movie."

Not that Damon thinks that Nikola seems like the Stan Lee-superhero type, but he can still see Hollywood taking a story like that and running with it. It's a lot more interesting than the reason that he became the way that he is (pathetically falling hopelessly, madly in love with someone who didn't feel the same but told him that she did

promised him they'd be together forever. God, he was an idiot).

"...compassion can be a pain in the ass that way or at least the people who have it endlessly." Damon doesn't have any though he never would be able to do what needs to be done in terms of Stefan, no matter how far down the line he was. That's because he loves his brother and doesn't care about the people he kills as the ripper. "So why didn't you just do what needed to be done anyway despite the compassionate ones?"