Conventional wisdom has it that putting the words quantum gravity and experiment in the same sentence is like bringing matter into contact with antimatter. All you get is a big explosion; the two just don t go together. The distinctively quantum features of gravity only show up in extreme settings such as the belly of a black hole or the nascent universe, over distances too small and energies too large to reproduce in any laboratory.
Here is the original post:
Could Simple Experiments Reveal the Quantum Nature of Spacetime?