The idea of a block universe proposes that space time exists as a totality, where the past, present, and future all exist equally. Our sense of time passing and the difference between past and future is just an illusion of the strange slice we take of this whole object.
The speed of light is not actually being exceeded, as locally it always moves at the same speed. It is the expanding universe that causes the appearance of light to travel faster than the speed of light in certain conditions.
A physicist discusses why space and time are the same kind of thing due to the property of causal invariance that is true of a variety of models, making it not matter if one uses a hypergraph or not.
Donald Hoffman proposes that human brains are capable of perceiving the environment without directly sensing reality due to the evolutionary development of complex life on Earth, making it possible for humans to view the world based on an abstraction of objective reality.
The possibility of traveling through space-time via the ripples caused by gravitational waves is explored, including the potential of manipulating black holes to do so.