Miles Stoudenmire: Breaking Everything Apart and Putting It Back Together Again With Tensors, Perimeter Institute (opens in new tab)

Imagine a giant Lego ball made of billions of multicoloured blocks. With so many pieces attached to each other in every which way, it’s a big, complicated mess. You can’t see all the blocks and colours inside the ball, so it is difficult to understand the makeup of this object, or know what you can do with it.