1- Moments are irreversible.
2- Some irreversible changes are: the age of a person, a tree or a star.
3- In Quantum Mechanics we can find reversible changes.
We must differentiate between moments (irreversible) and changes (reversible or irreversible). The time arrow refers to moments, not changes. Therefore, time (natural) is the continuous succession of irreversible moments that goes from the past to the future. Time marks the rhythm of changes or movements.
a) pt < pm < ft (time increases continuously). True.
b) pt > pm > ft (time decreases). False.
pt is past time
pm is present moment
ft is future time
Elvis Sibilia
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