The block universe theory says the past, present and future all exist — and are equally real — in a four-dimensional block where the passing of time is an illusion.

Matter is what makes up the universe, but what makes up matter? This question has long... Fragments of energy – not waves or particles – may be the fundamental building blocks of the universe ...

The fragment could be a single potentially universal building block from which to model reality mathematically – and update the way people think about the building blocks of the universe.

Letter: It's just a chip off the old block universe. Published 26 June 2024. From Hugh Miller, Brighton, East Sussex, UK . Your look at the development of a strange idea from the 1980s, that time ...