A lot of people are going to get caught staring slack jawed at the backwards juggling act that served as the grand finale to this ice capades-esque training clip. Considering the fact that even a good portion of NHLers would wake up in the net after having concussed themselves in an attempt to pull off something similar, there's very good reason for that sequence to be the subject of shock and awe.
That said, I would be lying if I said that high maintenance party trick was what I found most impressive about a video that I could have sworn was stuck in fast forward. That pissed off feeling that you get when you misjudge and zoom a little too far past the commercials? That's the same anxiety I felt while trying to understand about 75% of what Mitch Marner did - with ease - throughout those highlights. Honestly, if there was someone narrating every single move made then it probably would have sounded like I had accidentally turned a podcast up to 2.5x the normal speed. I would likely be lucky to catch every 4th word, because I only completely comprehended every 4th move after first watch. I must have said "wait, what?" at least three times in a 39 second video and it would have been more if I didn't find myself stunned silent by him heel-toeing around the entirety of the neutral zone in what appeared to be overdrive.
Obviously a kid who would be lucky to weigh 170 pounds after feeding him cake and throwing him in the pool fully clothed at Mitch-A-Palooza needed some quickness and creativity to put up 60+ points as a rookie. Still, seeing the extent of it up close without a defender in sight really puts things in perspective.