Suddenly Smarter-Notes on Richard Klein's proposal

Can the existing state of consciousness of the human mind really be the haphazard result of a genetic mutation? Are we to believe that for the earliest stretch of our existence, we wandered the barren plains and badlands of pre civilization, grunting and prodding each other with sticks, lamely relenting our shelters to predators, until suddenly the purported light bulb went on and eureka; the cultural revolution was born. Richard Klein is suggesting humanity has little to thank genetics for other than that near divine moment of brain amendment, instead of the more widely accepted belief that archeologists have proposed of a slow and gradual evolutionary process enabling logical thought. Klein recognizes that due to lack of essential funding, the spaces between discovery and conclusions are yawning. Admittedly he states, “The research has no economic, medial or political implications.” Is it safe to assume then, that were a project given millions to expend in due context, evidence could be discovered that pre dates 45,000 years, consequently negating Klein’s argument completely? It is straightforward enough to suggest a theory without the confirmation of physical evidence. If this “big bang” conjecture really did occur and humankind suffered intelligence as a result of a mental aneurysm, why then has it not occurred in other species? What makes the human race singular in this experience? A lack of tangible evidence due to the basic flaw in any experiment (no matter which way the world turns it always comes down to the cash) seems to have made this rather radical proposal of Klein’s acceptable.