Spinoza’s God as Nature: an engineer’s reading of Ethics Part I
I came to the Ethics (published 1677, after Spinoza's death) because of the geometrical form: definitions, axioms, propositions, demonstrations. It looks like a specification document.
Part I argues that substance is what is in itself and conceived through itself; that there can't be two substances with the same attribute; that substance is infinite; and therefore that there is exactly one substance, God, with infinitely many attributes, of which we know two: thought and extension. Everything else is a mode of God. The phrase Deus sive Natura, God or Nature, appears later, in Part IV, but Part I already commits him to it.
As an engineer I love the rigour and distrust it at the same time. If the definitions are chosen well enough, the conclusions are almost guaranteed. Many commentators think Proposition 5 (no two substances share an attribute) is where the argument slips.
Is this God in any religious sense, or is it nature with a grander name?