Living beings bring more order to the world, and are required by the second law of thermodynamics, to simultaneously produce more disorder through metabolic heat dissipation. Consciousness in living beings produces even more order, enhancing survival and reproduction, and incurs an entropy debt that must be paid separately, and non-metabolically, through heat dissipation produced by Landauer’s principle: the erasure of information within the "explanatory gap" of the hard problem. Consciousness is assumed to depend on the properties of tryptophan in microtubules and their ability to dissipate heat through superradiation as required by Landauer. After the post-mortem decomposition of microtubules, consciousness will have no mechanism for the necessary heat discharge, which would violate Landauer’s principle and thus the second law. Any actual such  survival would imply life-before-death to be solipsism. The aim is to distinguish near-death experiences and out-of-body experiences from life-after-death in biophysical terms, and to explain how they might arise as a result of natural forces. It is hypothesized that near-death and out-of-body experiences, and their vivid nature, arise from the disinhibition of microtubular consciousness after electroencephalographic brain activity has stopped, but while microtubular Tryptophan continues to be activated by ultraviolet photons. These are hypothesized to be transmitted to the brain primarily via light falling on the retina or skin, carried to the brain through mitochondria and microtubules acting as optical waveguides. Additionally, bioluminescent ultra-weak photon emissions accompany membrane depolarization at the moment of death. It is hypothesized that the relativistic transactional interpretation of quantum mechanics could explain the entanglement of this photonic microtubular input, as potentialities, with environmental photons in order to account for rare, veridical near-death extraocular perceptions. Veridical Auditory near-death and out-of-body experiences require a coordinated stimulation of Heschl’s gyrus by ambient sound, which might be accomplished by adiabatic mechanical propulsion of axonal solitons along the Auditory nerve, or possibly transcranial perception of low frequency sound waves.Ultimately, the approach of death can be accompanied by a pseudo-solipsism of "added time" that could seem like an eternity for the deceased person even as microtubular stimulation decreases.