The Persistence of the Large Volumes in Black Holes

Understand

Classically, black holes admit maximal interior volumes that grow asymptotically linearly in time.

• We show that such volumes remain large when Hawking evaporation is taken into account.
• Even if a charged black hole approaches the extremal limit during this evolution, its volume continues to grow; although an exactly extremal black hole does not have a "large interior".
• We clarify this point and discuss the implications of our results to the information loss and firewall paradoxes.