Jackknife is the second and longest level of Mirror's Edge, and is a chapter that Lorna Reid spoke fondly of last year. The following video isn't the best way to revisit its twists and turns—but it is a world record-breaking speedrun that was two years in the making, covering the entire game in just 22 minutes and 40 seconds.
Beating the previous record by almost six minutes, the following is 'segmented' wherein 11 players contributed specific sections of the run. A description below the video states it has "been a project of the Mirror's Edge community for the last two years", and that "while the possibilities in Mirror's Edge are almost endless, this is as close as we have ever (and potentially, will ever) come to presenting a run which truly bleeds the game dry."
Onto the run itself:
The video description continues, suggesting the above is the result of nine years worth of practice without mods, hacks or external aids. "Everything that you see in this run is done by exploiting in-game mechanics," it continues, "and can be performed by anyone with a copy of Mirror's Edge [on] PC."
Now, if you'll excuse me I'm off for a lie down.