From an interferometric perspective, there are no mysteries... and no paradoxes... in the physics of quantum entanglement. - F. J. Duarte

The most efficient and practical interpretation of quantum mechanics is... no interpretation at all.

The longer the cavity and the narrower the beam waist, the better the beam quality of the laser emission, or
<math> |\langle x | s \rangle|^2\ = \sum_{j=1}^\N\,\Psi(r_j)^2\ +2 \sum_{j=1}^\N\,\Psi(r_j)\bigg(\sum_{m=j+1}^\N\,\Psi(r_m)cos(\Omega_m-\Omega_j)\bigg) </math>

Personally, I find the concept of a "final theory," or a "theory of everything," rather limiting. The fun of discovery will most likely last as long as the human race continues.