Boris Sidis,
The Foundations of Normal and Abnormal Psychology…
(1914
| notes)
“ Finally, it may be urged, that the invocation of an extra-mundane world helps matters little, as it does not show the modus operandi of the interdependence of mental and physical phenomena, inasmuch as the rising or falling of a physical threshold does not in the least explain or show how a stream of consciousness is made possible to vary in volume and intensity. Without explaining the proposition that mental processes vary as physical processes, the transmission hypothesis only assumes an additional world of disembodied consciousness and thus gratuitously multiplies entities. ”
