Probability lies at the nexus of time and space.
Probability is measured by information – a photon is a measure of what was, not what is.
[[[[ Photon on, photon off, what is a half photon? ]]]]
[[[ Waves propagating across the surface where the particle is detected in terms of there or not… ]]]]
[[ Waves… on the surface of a dimension beyond time, space and probability ]]
[ Or do they? ]
Measurements travel instantaneously.