Quantum Gravity and Singularities
Most recent answer: 12/28/2013
- Behrppz (age 40)
Mashhad, Khorasan Razavi, Iran
Great question.
The problem you're describing is at the heart of the "quantum gravity" issue. So far, there's no complete theory of quantum gravity. Many people believe that string theory/M-theory is the most promising route to one. In these theories there are no point objects, and the singularity is removed while the structure of quantum mechanics is maintained. General Relativity would then only emerge as the long-wavelength approximation to the full theory.
Mike W,
(published on 12/28/2013)
Follow-Up #1: quantum gravity
- Behrooz Hariri (age 40)
Mashhad, Khorasan Razavi, Iran
We still don't know what happens on that small scale, called the Planck scale. The Planck distance scale is about 10-33 cm and the time scale is about 10-44 s. Those are far, far smaller than any direct probe available in the the foreseeable future.
Perhaps we observe quantum gravity all the time, in that the solutions for how it behaves may be responsible for what we call the elementary particles. Without some better theory, however, we don't even know if we're observing the symptoms of the Planck-scale physics.
So yes, your question remains- for all of us, not just you.
I should straighten out one point concerning the descriptive language often used to describe quantum states. People often say that something is "fluctuating", implying that it's changing in time. The position of a little mass on a spring (simple harmonic oscillator) in its ground state doesn't fluctuate. It's spread out and it stays spread out in the same pattern. The same goes for other quantum variables, including ones that are somewhat more abstract.
Mike W.
(published on 12/28/2013)