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The following incident is being used as a metaphor for Spinoza's ideas. He believed that everything in nature takes place by necessity (and mankind is part of Nature). When the enormous section of a hill in Washington State became too saturated (after numerous heavy rains earlier in 2014), and collapsed into a village, killing / burying many people and their homes, that can be used as a metaphor for what Spinoza was saying. Thousands of tons of wet earth roared down into the village with no warning, but that disaster was determined by Nature. The land didn't decide it would suddenly give way and hurtle down upon the village.

In fact, the logging around that piece of land took away the roots of trees that otherwise would have kept the hill in place. And the river below was known to be cutting into the hill, eroding important features of the land -- a definite determination that led to the horrific event. Moreover, the heavy rains in Washington State leading up to the collapse also determined that the land would give way. So, if one can see the hill as a human entity, as part of Nature that has intelligence (which may seem to be a stretch, but it does have value as an example), that entity did not have free will to decide when it would slide down into the village. The existing Natural World realities determined if and when it would roar down into the village.

In conclusion, humans governed by determination, and not by free will. One's will is not put into motion by a decision one makes, but rather one's will acts out of necessity which has been predetermined by God, or Nature, which is also God, according to Spinoza. In other words, there are no should have arguments or could have arguments, or ought to have done arguments in terms of why an action or activity or decision was performed. That is because the behavior in question was externally or internally caused by the person who could not possibly have acted other than the way he or she did.