forecast
Trans-Planckian censorship bounds universe lifetime
The trans-Planckian censorship conjecture holds that sub-Planck-length scales can never become physical; applying it bounds the lifetime of a meta-stable dark-energy state to roughly a Hubble time (up to a logarithm), implying the dark-energy phase of our universe can last no more than a couple of trillion years.
forecastpending
Speaker
Cumrun VafaEvidence Quote
“we propose what we call the trans plan and censorship conjecture, which basically suggested that things which are smaller than the Planck length can never become physical... we have an upper bound prediction of the age of the potential lifetime of our universe could be no more than the couple trillion years.”
Created: 6/13/2026, 12:07:45 AM
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