It will be very interesting to see what Jakob can do for 5k. I think he could break the WR right now with good pacing. I find the sub 12:30 predictions a bit too optimistic. Just a reminder that Daniel Komen had prs of 3:29, 7:20, and 12:39. Slightly more strength oriented than Jakob who ran 3:26 for 1500m. Komen was "only" able to run 12:39.