Topology is witchcraft
My brain hurts
@bartholin Brilliant! These illusions are a wonderful illustration of the power of "accidental viewpoints", and of how heavily our visual systems rely on the assumption that we are Not seeing things from such a viewpoint.
@bartholin Please add captions to your media.
@bartholin I'ver seen this video and ones like it dozens of times. I STILL don't grok how it works. I saw it, I know it works. I just stare at the start and end point and go "NO! THAT CANNOT BE!"
@bartholin there is no god and we are his children
@bartholin It is more often associated with witchcraft than knot indeed.
@bartholin Great. Now my head hurts. Seriously, that was pretty amazing!

@bartholin

The first one would cut scarily easily via friction if they kept sawing at it... but very cool, I learned something

@bartholin i though this is bondage at first
@bartholin if somebody troubled oneself to get you tied then you better stay tied
@bartholin Quelle est cette SORCÉLERIE !
@bartholin if i saw someone do this in real life i would try to burn them for being a witch. this shit is far beyond my current understanding.
@bartholin Time to study Allen Hatcher again. 
@bartholin I can't stop watching this. It's making me cry in brain hurt.
@bartholin I read this as “typology” initially and was like ok, I’m listening 😂
@bartholin Waarom zie je deze truuk nooit in films. Niet spectaculair genoeg zeker. Tom Cruise die op de kop hangend als een super-Houdini uit z'n handboeien ontsnapt, dan hoef je je niet de rest van de film af te vragen: hė, wat gebeurde er nou? 🤔
@bartholin No! This is wrong. THESE PEOPLE IN THESE VIDEOS WILL SURELY BURN!
@bartholin (Also I want to see that yellow one in reverse)
@bartholin I think we need to throw an entire branch of mathematics in a pond and see if it floats.
Also, my head now hurts.
@bartholin my life is forever changed.
@bartholin OMG. I’m not smart enough to understand this.

@bartholin

This trick is easy to understand.
The cable goes OVER the bar. There is only an additional loop under the bar.

@bartholin
This is witchcraft and I am bookmarking.
@bartholin I already saw this but still figure out how the fuck it works
@bartholin nah this is fake
@bartholin Okay I have now made my robot unusable…
@bartholin what part of the brain is responsible for this again?
@bartholin yeah maybe…BUT IT’S ALSO FUCKIN SCIENCE AND GEOMETRY FRIEND! Plus, no small amount of understanding how knots and lashing/rigging work. Kinda unrelated, but still worth mention: if you learn ZERO other knots in life, learn how to tie a Bowline knot. So amazingly useful in so many situations
@bartholin Topology and especially knot theory are branches of mathematics that I find both beautiful and magical, the latter because I struggle so hard to understand them.
@bartholin My eyes have been opened.
@GustavinoBevilacqua immagino che tu abbia di questi problemi

@rastinza

Di solito risolvo con un colpo di flessibile…

@bartholin we need that guy to untangle the christmas lights...