Columbia University contacted my counselor -- good or bad sign?

@BKSquared

Interesting insight, thank you so much.
I was surprised to see some decisions have already been made at this time. If I’m still in the running today means I’ve already been through the first elimination ‘rounds’?

Also, unrelated, but are interviews assigned immediately or is there a thinning out of applicants before doing so?

Thanks again for your time.