Why can't current theories describe what happened during the Planck era?
A)We do not yet have a theory that links quantum mechanics and general relativity.
B)The Planck era was the time before the Big Bang, and we cannot describe what happened before that instant.
C)We do not know how hot or dense the universe was during that time.
D)We do not understand the properties of antimatter.

Question

Quizplus · Accepted Answer

Current theories, such as general relativity and quantum mechanics, are not yet unified into a single theory that can describe the behavior of the universe during the extreme conditions of the Planck era. Therefore, we do not have a comprehensive understanding of what happened during this time.

Why Can't Current Theories Describe What Happened During the Planck