We are in the midst - maybe near the end - of a huge tech boom. Crazy amounts of new technologies, etc.

When we run out of non-renewable resources all of our new products are going to have to be made from recycled materials. Maybe before it gets to that point we can change our way of living by the choices we make, and maybe keep a little saved money (oil) in the account for emergencies...

Looking around your classes, you realize that it's all on us. We have to step up and take responsibility for our actions. Obviously this applies to life in general, and it might be the most important lesson anyone can ever learn.