Terry: If there is one thing for certain, fire was NOT discovered by rubbing sticks together.
Relatives of homo sapiens "discovered" fire much the same way gorillas, chimpanzees, deer, squirrels, owls, ants, bees, and every other kind of land-dwelling creature discovers fire. One starts and destroys habitats, destroys specimen, and destroys product. In the wild, those species of the animal kingdom which are not afraid of fire do not often survive fire. Instinctively, fire is feared and avoided by mammalian species in particular.
Do you agree?
Again, before trying to find a way to bring this dreaded thing into existence intentionally a need must be present which (a) requires the technology to a sufficient degree that natural instinct to survive is overwhelming innate dread of fire, and (b) can be met quickly enough to have been discovered within one life span. The solution to the need must have been (a) discovered within a single life span, (b) have been simple to employ, and (c) can have been easily communicated to uninterrupted successive generations prior to the advent of written communication.
The need for technology precedes the use of technology—more especially in prehistoric environments than today. There simply wasn't time in a day for idle pursuits.
To use your analogy of Survivor, Terry, ALL the people placed in those more primitive circumstances (still ultra-modern by prehistoric standards) already know the survival value of fire and they are often still unwilling to invest the required efforts or are unable to produce fire. Others, after producing fire, fail to keep the fire going through inattention or unfavorable weather conditions. At home, we watch thinking how stupid they are for not giving due attention to such a vital element of wilderness survival. They are exhausted from the other demands of survival, caring for provision of food, clothing, and shelter. They are undernourished and tired, they make mistakes. They know the value of fire and sometimes still can't keep one maintained once started.
Original anthropogenic fire requires the value being either intuited from a position of complete ignorance of the advantages of fire or necessitated by immediate unfavorable conditions that required the production of fire. That is, unless we imagine primitive societies had time to devise parlor tricks for entertainment purposes. Watching Survivor, I find that extremely difficult to envision.
I think original anthropogenic fire is a very interesting discussion because of the single life-span constraint implicit in the nature of the technology itself. It couldn't possibly have developed gradually over even two hundred years, much less hundreds of thousands of years. We are talking a period in history when the average life spans were much shorter than today. The needs leading to its introduction and ubiquitous application would have to have been much too immediate to allow for a hundred generations of "fire scientists" dedicated to the pursuit of acquiring human generated fire.
Respectfully,
AuldSoul