Many reasons why DR is more competitive but main reason I think is the recent overexpansion of medical schools md and do in the recent years and step score creep/arms race so that many more med student now are actually very good, which makes everything more competitive including anesthesia DR psych etc, causing selection to boil down to interviews. Only a few years ago one is guaranteed a top DR and anesthesia program for being us md, showing up to the interview, and be the most average student- many great Dr and anesthesia programs had open seats in the soap, now they never go unfilled. Also job market for Dr is said to be good right now but who knows what will happen next in the future. Pandemic also makes it easier for people to apply backup thanks to decreasing aways and zoom interview