 what's going on in the planet and what we need to do to save it. But looking back over, there are a lot of clues as to how you can survive and thrive from what our ancestors did, what they discovered, what they did, how they lived. So there's this huge collection that's been amassed down in Chesapeake Bay by a fellow who's an artifact hunter. He's been at this for 40 years. He's found 300 tools.