I'm not sure I believe this just from the video. Was the video supposed to be posted as proof that this happened?
Maybe he faked all the videos and got the Guinness book of world records to put a fake record on their website, but they doesn’t seem like the simplest explanation.
I presume so that any records held by themselves aren't called into question.
It may also seem "impossible" because you don't see Lars using what people might expect of an archer: a compound bow. You really don't need it. You can get incredibly accurate with a traditional bow, especially on the short distance you see in the video.
Source: I shoot traditional bows.
Smarter Every Day episodes that seem relevant:
Episode on archery w/ Byron Ferguson: https://www.youtube.com/watch?v=Q8Yp9SjCU5E
Episode on the Archer's Paradox is very interesting in this regard as well: https://www.youtube.com/watch?v=HKMS2wO7WTI
Sincerely Lars Andersen
I imagine the archer made several real-time videos from several vantage points to prove no shenanigans.
He can just shoot 7 consecutive arrows at the back of a door, then leave the camera running as he shoots 7 consecutive arrows through the keyhole (with the tip starting out in the keyhole so he can't miss), and then composite the footage of the arrows going through the keyhole on to the footage of the arrows coming out of the bow.
The time gaps in between the arrows will be different, but nothing much is happening to the back of the door during this time, so you can just slow down or speed up the "back of door" footage during the dead time to line it up.
(I'm not saying he's done that -- I think it's real -- but that is how I would do it).
I'm not sure about the audio, but it doesn't seem too much of a stretch to fake the audio as well.
The real proof is all the other videos of Lars doing absolutely insane things.
The record is at https://www.guinnessworldrecords.com/world-records/691706-mo..., though, and I do trust them to have checked that.
What you're doing is spreading FUD, which is far worse and erodes basic trust - a tenant that society depends on.
The point that Guinness witnessed it and that Lars is well known are great ones-- but there are many things people believe unquestionably which don't have evidence anywhere near as strong as that.
If you think trusting videos on the Internet is something that society depends on, we are fucked. Wow.
In this case, I'm fine to assume it could easily be faked, but wasn't.
It might be easy to fool me, but an expert archer would notice tons of this I’d miss if trying to fake it.