@jim
//I think you might be confusing causality with determinism in that post. //
Probably. I know certain words have a much tighter definition within the scientific domain than their typical, colloquial uses.
All I was trying to get across is that it is possible to look at the universe, -perceive- complexity but fail to realise that the underlying physicsical laws can be relatively simple.
Also, fascinating real examples of the three body problem have been discovered, with stars seen whizzing around a black hole, thanks to Hubble telescope etc, since the time that book was published, so the veracity of the computer models has become testable.
@Old_Geezer
// Maybe, at this moment, something has selected a preferred set of "memories" of the "past" for you. //
Interesting proposition. The brain certainly seems to need a 'narrative structure', putting events in sequence, in order to make sense of the world. Indeed, if it were merely an organ for filtering the multiplicity of experiences available across this simultaneously accessable timescape then things could go seriously wrong for the organism if it could no longer distinguish between 'then', 'yet to come' and 'the now' and failed to respond to a contemporary threat to its existence, for example.
The concept of a 'something' that inserts memories, selected for you which, I presume, help you to rationalise your present state of existence is, frankly, disturbing and has shades of The Matrix about it.