I listened tot the show twice, and it really helped me in beginning to grasp the importance of what Joshua is trying to accomplish with his new book.
The way I see it —and you'll have to excuse me if I offend a few people in their national pride— the United States is beginning to be left behind in the field of scientific training and Science education.
There are many factors for this: one is that less and less young individuals feel attracted to Science because they might feel they have better (and easier) chances to attain wealth if they focus instead on things like sports or the entertainment industry —it's easier to find the next Justin Bieber, than the next Einstein or Edison.
There's also the actual discouraging for young folks in getting their actual hands on scientific experiments, due to safety concerns; to the point that selling a chemistry set
without actual chemical compounds is now considered normal —after all, we don't want little Jimmy to get burned with some hydrochloric acid now, would we?!
And there even might be a general sense that there aren't many things left to discover anyway. Or that even if they are, it would take a huge amount of equipment and resources to do it —e.g. the LHC in Geneva.
Now, getting back to Joshua and his book, it occurs to me that this could very well help spark a new scientific Renaissance in the United States. The same way people started to toy around with little electrical gadgets in the early XIXth century, or how the first giant home computer industries were born inside a suburban garage in the late XXth, maybe if enough people follow Joshua's directions and start to experiment on their own, at the very least you would inject a broader understanding of the scientific principles amid the general public.
And, at a long shot, you could end up laying the foundations for a whole new field of Science. And History tells us that when that happens, a great deal of material prosperity and quality of life can be reaped by the country that ventures there first.
So kudos to Joshua