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Is every action a reaction? (kbin.earth)

submitted 2 days ago by eierschaukeln@kbin.earth to c/asklemmy@lemmy.ml

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Can something happen without anything else causing it?

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[–] Maeve@kbin.earth 2 points 2 days ago (2 children)

The hand was guided by neurological impulse

[–] MurrayL@lemmy.world 3 points 2 days ago* (last edited 2 days ago) (2 children)

Not if your chosen reference frame is a hand and a ball, as per the example

[–] pebbles@sh.itjust.works 2 points 2 days ago

I mean aren't you saying: "Something can happen without a cause if we just ignore the cause."

I read ops question as about reality, not hypothetical universes that contain a hand that moves a without an arm or brain attached.

[–] Maeve@kbin.earth 1 points 2 days ago (1 children)

This isn't the Addams Family.

[–] Derpenheim@lemmy.zip 1 points 2 days ago (1 children)

I get the confusion, but a reference frame is a very important limitation for calculating what you need. Its not about whether the arm exists behind the hand, but whether its effects are important for the calculation.

For the sake of the hand pushing the ball, its not. Only the momentum of the hand and the inertia of the ball are important.

[–] Maeve@kbin.earth 1 points 2 days ago

I understand very well, and also understand anyone with the capacity will understand the frame of reference doesn't explain the phenomenon. It's how we went from four corners to heliocentrism to galaxy, universe, and multiverse.

[–] ProfessorOwl_PhD@hexbear.net 1 points 2 days ago

The neurological impulse is not part of the frame of reference, just the hand. That's the point of a frame of reference.