At the quantum level, whenever we observe or measure something, we reset its clock and stop it decaying – something known as the quantum Zeno effect. Our measurement of the light from supernovae in 1998, which provided evidence of dark energy, may have reset the false vacuum’s decay clock to zero – back to a point when the likelihood of its surviving was falling exponentially over time. “In short, we may have snatched away the possibility of long-term survival for our universe and made it more likely it will decay,” says Krauss.
“The measurement of dark energy may have reverted the universe to a state when it was more likely to end”
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