atc

Short term for "alright then, continue"

For when you don't know what to answer but believe saying OK would be to dismissive and also you don't really have an opinion on the specific topic.

Person A: "Hey! Have you seen this new niche game that nobody really plays? I think more people should play it!"
Person B: "atc"

OR

Person A: * tells you about their life situation *
You: *don't really know what to say but kinda wanna be supportive* "atc"