The idea of 'causation' presupposes time, because a cause is defined as prior to its effect, and causation is a temporal process. — unenlightened
The bowling ball causes the depression in the cushion.
Cause is not always prior to effect. Indeed sometimes it is impossible to decide which event is the cause and which the result. — Banno
This will be fully dependent on what is interpreted by the term “causation”. That causation expressed in the phrase, “my aim of expressing the ideas of this post was the cause of me writing the words in this sentence,” is not today taken by most philosophers and scientists to be a valid instantiation of causation—even though it is a valid form of Aristotle’s final causation in his framing of causal pluralism. And even though the expressed sentence makes cogent sense (just as much as does the statement of a ball causing a cushion’s depression).
I'll argue that Kant’s rebuttal to Hume in claiming that simultaneous causation occurs in many instances of efficient causation—which the ball and cushion example epitomizes—misses the entire point of what efficient causation is supposed to be. Here’s one reputable source’s definition:
The efficient cause or that which is given in reply to the question: “Where does change (or motion) come from?”. What is singled out in the answer is the whence of change (or motion). — https://plato.stanford.edu/entries/aristotle-causality/#FourCaus
There is no motion or change taking place in a bowling ball’s state of rest atop a depressed cushion. Hence, here, there can be no efficient cause to an effect (of change or motion), for no such effect occurs.
Then again, the ball’s being in a state of rest on the cushion causes the cushion’s given curvature just as much as the cushion’s given curvature causes the ball to be in a state of rest. Both are equally viable from their different, respective vantages of interest. Here, then, the ball's state of rest on the cushion is a simultaneous cause and effect in relation to the cushion's given curvature, which is also a simultaneous effect of and cause to the former. This relationship, then, produces so much havoc in our understandings of (efficient) causation as to render the term useless and, thereby, meaningless.
Here is one possible alternative understanding of how the resting ball causes the cushion’s depression: teleologically, rather than efficiently. In short, the ball’s set of teloi (including that end of being optimally proximate to Earth’s center) interacts with the far more malleable cushions’ set of teloi so as to result in an equilibrium wherein the ball is at rest and the cushion is depressed. This equilibrium (which, of itself, is changeless) is thereby teleologically caused by the ball just as much as it is by the cushion—this since it results from an interaction between both teloi-driven things. Utterly foreign to our modern ears, but in no way illogical.
As
@unenlightened specified, for efficient causation to hold, the occurrence of the cause will then need extend prior to the occurrence of the effect—which does not happen in the ball and cushion example. With this traditional understanding of efficient causation, however, one can then validly affirm that, “the person letting the bowling ball slip from their hands (efficiently) caused the change in the form of the cushion that lied just underneath,” for the first occurrence as (efficient) cause extends prior to the time-span of the second occurrence as effect (despite the teleology previously mentioned remaining intact—to here not address the formal and material causes which could also be argued to occur). And, from a different vantage, one can then also validly affirm that “the cushion’s placement caused the falling bowling ball to come to its specific state of rest” for, here again, the cushion’s placement, as cause, necessarily extends prior to the bowling ball’s state of rest as effect.
But, again, a ball resting atop of cushion does not
efficiently cause the cushion’s depression. This for the same reasons that change in temperature does not efficiently cause change in barometric pressure.
Since this issue of causality is of interest to me, I’m curious to see what disagreements there might be with the just expressed.
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To contribute to the OP: where there to be no disagreements, this would then make the argument expressed in
’s post quite valid.