G'day Ray
The devil is in the detail. The following paper is old but still relevant, why do they continue to do these expensive experiments? "They protest too much"? Maybe they are trying to convince themselves? Anyway, the final test of entanglement will be the quantum computer being supreme over an analog computer similar to a lens performing a 3d Fourier transform at light speed (ns), consuming no power, at ambient temp., Your telescope performs these transforms continuously?
https://jumpshare.com/v/HlqWkdLlG4TGeY4KQ9N7
Cheers
Barry