Can impact come earlier than trigger within the quantum realm? Perhaps not
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First comes trigger, then comes impact – or does it? This order of occasions has beforehand been upended within the quantum realm, with the opportunity of each A-causes-B and B-causes-A occurring concurrently. However a brand new mathematical evaluation suggests this quantum quirk could also be hemmed in by the very construction of space-time.
For greater than a decade, physicists have been grappling with the thought of indefinite causal order –situations the place it’s inconceivable to inform whether or not trigger got here…
