Perhaps the most important lessons to be learned from my ten year study of Californians seeking formal approval of their use of cannabis as “medical” are that humans- the most highly evolved species on Earth- are now in trouble because they (we) have overpopulated our home planet and are prevented by emotional commitments to deeply contentious beliefs from even recognizing that problem, let alone “solving” it.
Nor will an understanding of how we got into this dilemma come easily; it will require nothing less than an extensive rethinking of several basic ideas about “belief” and “faith” that have been dividing the species for millennia. Yet, because the potential consequences of inaction have become so dire (think Nuclear Winter, Global Warming, or Airborne Pandemics) we should start addressing them ASAP.
DENIAL is a pervasive human characteristic that literally allows us to look past those things we don’t want to deal with; it has had survival value in the past by allowing “bygones to be bygones” despite painful reality (“inconvenient truth”). For that reason alone, getting past our need for denial may turn out to be more difficult than we now imagine.
Recent European History provides a helpful short-cut to further understanding of our population problem: the Enlightenment gave birth to both Science and Democracy, two of the phenomena that have allowed our species to get itself into so much trouble. Thus it behooves us to ask ourselves which of our modern existential threats: overpopulation, nuclear weapons or airborne pandemics, for example, didn’t require the assistance of either Scientific Technology or its political homologue, Multiculturalism for their generation.
In a similar vein, both Understanding and Belief are brain functions; although the brain is a vital organ like the liver, kidney and heart, its array of functions is orders of magnitude more complex and its dependence on oxygen much more intense (we start “graying out” after seven seconds without oxygen and are unconscious in 15; brain cells begin to die after three minutes of circulatory arrest).
From an evolutionary perspective, the brain is a triumph: a problem solving machine that has allowed our species to dominate all others in terms of both its global distribution and the habitat it can render viable; we now can live year-round on every continent. We have visited the Moon and the Deep Ocean and are visually exploring its extreme depths, while awaiting information from a probe sent to “outer” Space in 1977.
Paradoxically, what the brain (and thus our species) is now having the most trouble with is the very cognitive function that has enabled human dominance. We are threatened by an internal conflict created by the parallel evolution of two of its cortical structures. One, the Amygdala, is older on the evolutionary scale and has been recognized relatively recently as dominant in emotional responses in many species; some as primitive as reptiles. The other, relatively much newer, and obviously essential to both language and critical thinking, is the neocortex.
