Walking vs driving and bicycles and flying airplanes.
Where our food comes from and all that..
Go to town without money or credit cards and see how long that lasts.
Our energy needs and consumption ratios.
Who controls the money and wealth.
There are those that would have you think that this is just an ongoing process that cycles up and down like the weather itself.
Times of plenty and times of sparse.
How many fish at any given time in the sea.
The effects of a billion cars and a million airflights every single hour and day of our lives.