a lot of? a lot 비교급?

i might be opening myself up to a lot more of these kinds of conversations in the future.

여기서 a lot 은 비교급 강조인가요? more 은 비교급인가요 부정대명사인가요?
저기 부분 이해자체가 되질 않아요 ㅠㅠㅠㅠㅠㅠ