We wish we had the ability to focus on a single project for as long as this guy has.
Artist Karl Baden, who teaches photography at Boston College, has taken a photo of himself every single day since Feb. 23, 1987.
The video above shows him aging over the course of nearly 25 years. (The clip features photos taken through Nov. 3, 2011.)
"I actually first had the idea for the project as a student in 1975," Baden, 61, told HuffPost on Thursday. "I began the project when I was 34."
Those interested can see all 9,534 photographs -- those taken through April 1, 2013, anyway -- in chronological order on his blog. (Baden admits he's fallen a few months behind on the project, as "life has a tendency to intervene.")
The video above doesn't include every photo over the 24 year, 8 month time period, Baden points out. But although he did a little editing for the sake of brevity, the video "probably contains 2,000-2,500 stills," he said.