On: This open problem taught me what topology is [vide...

[noqc]

The original understanding of a manifold was simply a "configuration space", which is very concrete, so I'm not sure what you mean that you are surprised that the world of topology could be practical.

[jebarker → noqc]

I didn't say I'm surprised the world of topology could be practical. I said that _I_ wouldn't have been able to explain the concepts in the video so clearly and tie them to a practical problem.

[noqc → jebarker]

you actually said "I don't think I could have tied the esoteric word of topology to a practical problem".