The explanation of the shaman himself is different: Guidance has been provided by forest spirits. On another continent, hunters of the Kalahari !Kung tribe leave the settlement to hunt for a period that may last anywhere from two days to two weeks. The tribe’s timely preparation for the return of successful hunters is necessary for processing the game. The people left behind make the appropriate steps long before the hunters’ reappearance. Their foreknowledge of the hunters’ return could be explained rationally by attributing it to a messenger sent ahead or the use of tam-tam drums or smoke signals. The tribesmen report, however, that it is the spirit of ancestors who informs them when the hunters will return.
Next, we move to the Amazon basin. The Shuar shaman is facing a new disease in the community. An herbal remedy is sought by adding leaves of a candidate plant into the hallucinogenic beverage ayahuasca, a sacrament indigenous to the Upper Amazon region. The shaman drinks it and, upon return to ordinary consciousness, decides the usefulness of the plant in question. Is his decision based on accumulation of ethnobotanical knowledge of several generations in combination with trial and error? The headhunter Shuar are not likely to be merciful to an ineffective medicine man, and his techniques must be working.
As Luis Eduardo Luna explained to me, according to ayahuasqueros, the spirit of a new plant reveals itself with the help of the spirits associated with the ayahuasca. Sometimes, they also tell which plant to use next. We can point to the following contradiction: Healers from different cultures are unequivocal in their interpretation of the source of knowledge, whereas rational thinkers use diverging, unsystematic explanations. Which side should be slashed with Occam’s razor? Also called the 'principle of parsimony,' Occam’s razor is usually interpreted to mean something like 'Do not multiply hypotheses unnecessarily' or 'Do not posit pluralities unnecessarily when generating explanatory models.' The principle of parsimony is used frequently by philosophers of science in an effort to establish criteria for choosing from theories with equal explanatory power. At first glance it is the 'primitives' who multiply causes unnecessarily by referring to the supernatural. Yet Occam’s razor may be applied easily to the rational view, if those arguments are less parsimonious."
- Rick Strassman (1952 - )
Inner Paths to Outer Space
