It's inherent to progress that the average Joe - or even the most outstanding Joe - can't know much of the global knowledge (otherwise, global knowledge would b

It's inherent to progress that the average Joe - or even the most outstanding Joe - can't know much of the global knowledge (otherwise, global knowledge would be very little indeed). I'm sure lots of people have some ideas how one could make a fire in theory (creating sparks or rubbing wood against wood or using a lens in bright sunlight or whatever). Whether a lot of people could actually put that knowledge to practical use is a different issue... but then again, it's not something inherently wrong. Just shows that average Joe doesn't need to start fire without tools, because tools are plenty nowadays. In our society it's more useful for the average Joe to be skilled at reading than at starting fires. That's not a bad thing.