You are just describing my thoughts about spacetime and entanglement. Take a look to my articles about the nature of the speed of light, and how the instantaneity it implies underpins all the physical phenomena we can observe existing in the universe:

https://medium.com/@quantumwormholes/light-speed-holds-the-key-to-understand-the-universe-83751cbcfbb1

https://quantumwormholes.medium.com/the-universe-explained-7df2cf8ced90