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9. Objects / E. Objects over Time / 5. Temporal Parts

[things have parts in time, as they do in space]

21 ideas
Temporal parts is a crazy doctrine, because it entails constantly creating stuff ex nihilo [Koslicki on Thomson]
How can point-duration slices of people have beliefs or desires? [Thomson]
You can't have the concept of a 'stage' if you lack the concept of an object [Ayers]
Temporal 'parts' cannot be separated or rearranged [Ayers]
Stage theorists accept four-dimensionalism, but call each stage a whole object [Noonan]
Three-dimensionalist can accept temporal parts, as things enduring only for an instant [Fine,K]
Even a three-dimensionalist might identify temporal parts, in their thinking [Fine,K]
Temporal parts are instantaneous [Sider]
Temporal parts exist, but are not prior building blocks for objects [Sider]
How can an instantaneous stage believe anything, if beliefs take time? [Sider]
Four-dimensionalism says temporal parts are caused (through laws of motion) by previous temporal parts [Sider]
Stage Theory says every stage is a distinct object, which gives too many objects [Hawley]
Stage Theory seems to miss out the link between stages of the same object [Hawley]
The stages of Stage Theory seem too thin to populate the world, or to be referred to [Hawley]
Stages must be as fine-grained in length as change itself, so any change is a new stage [Hawley]
An isolated stage can't be a banana (which involves suitable relations to other stages) [Hawley]
Stages of one thing are related by extrinsic counterfactual and causal relations [Hawley]
If the things which exist prior to now are totally distinct, they need not have existed [Haslanger]
We must explain change amongst 'momentary entities', or else the world is inexplicable [Haslanger]
You believe you existed last year, but your segment doesn't, so they have different beliefs [Merricks]
Perdurantism imposes no order on temporal parts, so sequences of events are contingent [Mumford/Anjum]