Segmented or not, this record-breaking 20:41 speedrun of Half-Life is seriously impressive.
But as mind-blowing and enjoyable as it is to watch without context, the more you read up on the run, the crazier it all seems. Take this summary from quadrazid, who posted the video to YouTube: "Starting back in the summer of 2010, the estimated time for this run was thought to be roughly 27 minutes. However, after almost four years of painstaking planning, theorycrafting and execution, we have arrived at our final time, smashing all of our wildest expectations."
Such dedication is truly inspiring. For more, go watch that 1:27:51 run of Half-Life 2.
[Via Rock, Paper, Shotgun]
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