Editing Modal logic (section)

====Physical possibility====
Something is physically, or nomically, possible if it is permitted by the [[physical law|laws of physics]].{{citation needed|date=January 2016}} For example, current theory is thought to allow for there to be an [[atom]] with an [[atomic number]] of 126,<ref>{{cite news|title=Press release: Superheavy Element 114 Confirmed: A Stepping Stone to the Island of Stability|url=http://newscenter.lbl.gov/2009/09/24/114-confirmed/|work=Lawrence Berkeley National Laboratory|date=24 September 2009}}</ref> even if there are no such atoms in existence. In contrast, while it is logically possible to accelerate beyond the [[speed of light]],<ref name="Feinberg67">{{cite journal |last=Feinberg |first=G. |year=1967 |title=Possibility of Faster-Than-Light Particles |journal=[[Physical Review]] |volume=159 |issue=5 |pages=1089–1105 |bibcode=1967PhRv..159.1089F |doi=10.1103/PhysRev.159.1089}} See also Feinberg's later paper: Phys. Rev. D 17, 1651 (1978)</ref> modern science stipulates that it is not physically possible for material particles or information.<ref>{{cite journal | last = Einstein | first = Albert | author-link = Albert Einstein | title = Zur Elektrodynamik bewegter Körper | journal = Annalen der Physik | volume = 17 | pages = 891–921 | date = 1905-06-30|bibcode = 1905AnP...322..891E |doi = 10.1002/andp.19053221004 | issue = 10 | url = http://sedici.unlp.edu.ar/handle/10915/2786 | doi-access = free }}</ref> Physical possibility does not coincide with empirical possibility.<ref>{{cite journal | last = Gyenis | first = Balazs | author-link = Balazs Gyenis | title = Physical, Empirical, and Conditional Inductive Possibility | journal = Philosophy of Physics | volume = 3 | pages = 1-22 | date = 2025-03-03|doi = 10.31389/pop.148 | issue = 1 | url = https://philosophyofphysics.lse.ac.uk/articles/10.31389/pop.148 | doi-access = free | url-access = subscription }}</ref>