the past is in some sense changing with every new conformation of the cosmos in thought

“Ah,” I said, sinking back onto my pillows, “that seems like it would be a hard sell among modern physicists.”

“I’m not interested in being a salesman,” said Roland. “My interest isn’t scientific, after all. I’m just as happy to call that interval between infinite actuality and infinite potentiality the realm of Fairy, or the Dreamtime. I do wonder, though, whether the actualization of a world in the conventional consciousness of any given age might have a retroactive effect. Whether the past is in some sense changing with every new conformation of the cosmos in thought. Or perhaps, it might be better to say, whether the past as we know it, and as it connects to the conventional picture of the present, is changing. I mean, we know that in a sense entanglement is as much a temporal as a spatial inseparability and…” His voice trailed away.

From Roland in Moonlight by David Bentley Hart..
From the back cover of Roland in Moonlight.