Quantum fluctuation shielding: the phenomenon where the universe's inherent unpredictability makes it hard to tell if you've got a good thing or not. It's like trying to hold onto a handful of quantum sand, only to have it slip through your fingers and reassemble into a slightly different shape.
Imagine trying to plan a picnic in the park, but the grass is simultaneously both wet and dry, the sun is shining and not shining, and the birds are singing both in harmony and discord. That's what quantum fluctuation shielding is like.
The effects of quantum fluctuation shielding can be subtle, but don't let that fool you. A single misplaced particle can turn a well-planned event into a disaster.
Case in point: our lab's attempt to create a quantum-entangled toaster. What was meant to be a revolutionary appliance turned into a doorstop.