Brain frying stuff - Interactive: What Is Space?

_Tombstone_

In 1915, Albert Einstein’s field equations of gravitation revolutionized our understanding of space, time and gravity. Better known as general relativity, Einstein’s theory defined gravity as curves in the geometry of space-time, overturning Isaac Newton’s classic theory and correctly predicting the existence of black holes and gravity’s ability to bend light. But a century later, the fundamental nature of space-time remains shrouded in mystery: Where does its structure come from? What do space-time and gravity look like in the subatomic quantum realm?

OK, this is part 3, their's links to the other parts down bottom left of page, the little graphic is pretty cool but it's quantum Entanglement, string theory, blackholes stuff.

Some might find it interesting.

https://www.quantamagazine.org/20150430-space-time-interactive/