A crash course in changing the world.
To the people of the future, I would pass on my extensive knowledge of the local flora. I spend much of my life camping and have an excellent working knowledge of what plants may be consumed and what plants should be avoided. I know where these plants live, how they can be found, and how to harvest them and make them into healthy food. Things like wild grapes and onions, sassafras trees, and pine trees are all indigenous plants to South Carolina which can keep someone alive out in the wilderness. This knowledge is the local wisdom which I would pass down to future generations.