1. A Pre-ply The Burning Fuse Model of Unbecoming in Time John D
A Pre-ply The Burning Fuse Model of Unbecoming in Time John D. Norton Department of History and Philosophy of Science University of Pittsburgh

2. The Burning Fuse Future Present Past Real Unreal
consumed by the
Present
to become the ashes of
Past
Real
posseses a capacity: it can come to be present
Unreal
lost the capacity: it cannot come to be present

4. Pluto no longer a planet
International Astronomical Union, 2006 General Assembly: Resolutions. IAU

5. Outrage….

6. How do we assign the label “real”?
Presentists
Real
Unreal
Eternalists
Real
Possibilists
Unreal
Real
Future
Earth one year in future.
Present
Earth now.
Past
No independent notion of unreality beyond not being present. Hence presentism becomes true by definition. (Mauro Dorato +…)
Earth one year in past.
…but otherwise disagree on no astronomical fact.

7. How do we assign the label “part”?
Perdurantism
Endurantism
State of the earth now is
the totality
of the earth
enduring through its history.
State of the earth now
is just
a temporal part
of the earth
perduring through its history.