The firewall transformation for black holes and some of its implications

Understand

A promising strategy for better understanding space and time at the Planck scale, is outlined and further pursued.

• It is explained in detail, how black hole unitarity demands the existence of transformations that can remove firewalls.
• This must then be combined with a continuity condition on the horizon, with antipodal identification as an inevitable consequence.
• The antipodal identification comes with a CPT inversion.