Brian Greene explains why space and time are part of a single continuum and why that means that everything that will ever happen HAS ALREADY HAPPENED somewhere in space-time. As I try to explain in the book, this means it is pointless to worry about what might happen in the future. If it HAS ALREADY […]

The answer is – I have no idea! However the below video and the RadioLab podcast “What A Slinky Knows” bring up some interesting philosophical issues about time, information and the nature of our perceptions. What happens to the bottom rung of a slinky when you let go of the top rung?