Quotes on Spacetime

Like any place in Reality, the Street is subject to development. Developers can build their own small streets feeding off of the main one. They can build buildings, parks, signs, as well as things that do not exist in Reality, such as vast hovering overhead light shows and special neighborhoods where the rules of three-dimensional spacetime are ignored.

Western Christians have imagined that, at the end of the day, God is going to throw the present space-time universe into a trashcan and we'll be sitting on clouds playing harps. The ultimate future that we're promised is much more interesting than that. It's new heavens and a new Earth with new bodies to live in.

So: if you buy the notion that reality consists of the things in your freeze-frame mental image right now, and if you agree that your now is no more valid than the now of someone located far away in space who can move freely, then reality encompasses all of the events in spacetime.

I always think of space-time as being the real substance of space, and the galaxies and the stars just like the foam on the ocean.