What Exactly is a Tesseract? (Hint: Not a Superhero Stone)

The video explores the concept of the tesseract, a four-dimensional shape, and its relation to The Avengers. It explains dimensions from 0D to 3D, and introduces the tesseract as a 4D analog of a cube. The video discusses human limitations in visualizing higher dimensions and confirms the mathematical plausibility of such shapes. It concludes with the idea that while we can't visualize 4D, it is a valid mathematical concept.

What new insight or understanding did you gain from this video?