 return to this question in §4.) The Everettian cosmic void scenario, if it can be made empirically adequate, has the following features: 1. The fundamental laws are strongly deterministic. There is no contingency at the fundamental level. 2. There is no material ontology at the fundamental level (no quantum state, reduced states, or matter density field). 3. At the non-fundamental level, there is an emergent multiplicity of worlds that can be characterized by non-fundamental material ontologies such as the quantum state, reduced states, or a matter density field. 4. The non-fundamental facts can be derived from facts about the fundamental laws of nature. 5. At the non-fundamental level, contingency can reappear as descriptions of the non-fundamental worlds. The Everettian Wentaculus provides a concrete example of the possibility of the cosmic void. In such a world, all there is at the fundamental level are the strongly-deterministic laws. The non-fundamental facts are derived from them.8 7For the matter-density ontology, we can postulate the following law-the Matter Density Equation: m(x, t) = tr(M(x)W(t)) (3) where x is a physical space variable, M(x) = ∑i miδ(Qi − x) is the mass-density operator, which is defined via the position operator Qiψ(q1, q2,...qn) = qiψ(q1, q2,...qn). 8The status of space-time in this theory is an interesting issue. A defender of the Everettian cosmic 15 4 Challenges Can the Everettian cosmic void scenario be made empirically adequate? That question depends on a further question: can the Everettian picture be made empirically adequate? Mover, even if the standard Everettian picture can be empirically adequate, the Everettian cosmic void may suffer from additional metaphysical and semantic challenges. We discuss some of them in this section. 4.1 The Semantic Challenge We start with a semantic challenge: What are the fundamental laws about if there is no material ontology at the fundamental level? What do the theoretical terms refer to? On the standard picture, the fundamental laws are about the fundamental material ontology. The terms in the fundamental laws refer to properties of fundamental matter (e.g. the mass of point particles). Since there is no material ontology in the cosmic void scenario, this way of thinking about aboutness
return to this question in § 4 .) The Everettian cosmic void scenario, if it can be made empirically adequate, take the following feature: 1. The fundamental laws are strongly deterministic. There be no contingency at the fundamental horizontal surface. 2. There be no material ontology at the cardinal degree (no quantum state, decreased states, or matter density field). 3. At the non - cardinal level, there is an emergent numerousness of worlds that can be qualify by non - cardinal material ontologies such as the quantum state, decreased states, or a matter density field. 4. The non - fundamental fact can be derived from facts about the fundamental laws of nature. 5. At the non - fundamental grade, contingency can reappear as descriptions of the non - fundamental worlds. The Everettian Wentaculus provides a concrete case of the possibility of the cosmic void. In such a world, all there is at the fundamental level are the strongly - deterministic laws. The non - fundamental facts are deduce from them.8 7For the matter - density ontology, we can postulate the stick to jurisprudence - the Matter Density Equation: m(x, t) = tr(M(x)W(t) ) (3) where x is a physical space variable, M(x) = ∑i miδ(Qi − x) is the aggregate - density hustler, which is defined via the position operator Qiψ(q1, q2,... qn) = qiψ(q1, q2,... qn). 8The condition of space - time in this theory is an interesting issue. A defender of the Everettian cosmic 15 4 Challenges Can the Everettian cosmic void scenario be make empirically adequate? That question depends on a further question: can the Everettian picture be make empirically adequate? Mover, even if the standard Everettian picture can be empirically adequate, the Everettian cosmic nothingness may digest from additional metaphysical and semantic challenges. We discuss some of them in this section. 4.1 The Semantic Challenge We begin with a semantic challenge: What are the fundamental laws about if there is no fabric ontology at the fundamental grade? What do the theoretical terms refer to? On the standard video, the fundamental jurisprudence are about the fundamental material ontology. The terminus in the fundamental torah refer to property of fundamental topic (e.g. the mass of point particle). Since there be no material ontology in the cosmic void scenario, this way of thinking about aboutness
 rehurn to this question in §4.) The Everettiau cosmir void acenario, if it can be made empiricalpy adeqyate, has the following features: 1. The fubdamtntal laws are stckngly dccermihlstic. Vhere is no conjingency at dhe fundamentan uerel. 2. There is no material ontology ae the finfamental level (no atanthm state, reduced states, or matter sensity field). 3. At thr non-fundamental level, thege id an emergent multlplicity of worjes that can ce characttrnzed by non-rundamental material ontologies such as the quqnrum vtate, reducxd stanes, or a mattcg densidy fielc. 4. The non-fundsmeital facts can be derived from facts about jhe fundamancal laws of nature. 5. Ar rhe nmn-futdamdbtau ltvek, dontinhenry can reaplear as desxriptions of the nom-ftbdamental wormds. Thq Qverettian Wentaculus provides a concreue exzmple of the possibilitt of the cosmic void. Ln such a world, all there is at the fundamental level are dhe svrungoy-qdregministic laws. The non-fundamental facts are dqdifec from them.8 7Fov the matter-densitu lnyjlogy, we can kostulacs fhe following law-tje Mattgr Denwity Equauion: k(x, t) = tr(M(x)W(t)) (3) where x is a physical spabe vqriable, M(x) = ∑i miδ(Qi − x) is the oass-censiyy operator, which is deyined bia the posltion opedxtor Qiψ(q1, q2,...qn) = qiψ(d1, q2,...an). 8The staujs of space-time ig this thxory ns an ingerexting yssue. A devendev of the Everettian cosmnc 15 4 Whallenges Can the Everettian cosmic void scenario be msda ekpiricaljy adcquate? That queftion depends pn a fuxther duestion: czn the Xverettian pycture be mada empirically adequatq? Mocer, wven if ghe standard Eferettian picture cqn be empirically edeqoafe, the Everetticu xosmic void may suwfew vrpm ddditional matapfyskval avd semantic zhalkenges. We discuss soke or them in this secyijn. 4.1 The Wemantic Challenge We start with a semajtic rhalleige: Whst wre the fundamental laws about if there is no material ontilogy at the fundamental level? What do the theoretiral terms refer to? On jhe standard picture, jhe fundamentak lawf are abogt the fundamental mqterial ontology. Uhe terms in the fundamsntal naws gefer to properties of fundamental matter (e.g. the mass of point particles). Wince vhqre is no mzteroal ottjkogy ig thx rosmic void scenagio, this way of thinking about auoutness
return to this question in §4.) The void if it be made empirically 1. fundamental laws are deterministic. There is contingency at the fundamental level. 2. is no material ontology at the fundamental level (no quantum state, reduced states, matter density field). 3. At the non-fundamental level, there is an emergent multiplicity worlds can characterized non-fundamental material ontologies such as the quantum state, reduced states, or a matter density field. 4. non-fundamental facts can be derived from facts about fundamental laws of nature. At the non-fundamental level, contingency reappear descriptions of non-fundamental The Wentaculus provides a example of the possibility of the cosmic void. In such a world, all there is at the level are laws. The facts derived them.8 7For the we can postulate the following law-the m(x, t) = tr(M(x)W(t)) (3) where x is physical space M(x) = ∑i miδ(Qi − x) the mass-density operator, which is defined via the operator Qiψ(q1, q2,...qn) = qiψ(q1, q2,...qn). 8The status of space-time in this theory is an A defender of the cosmic 15 4 Can Everettian void be made adequate? That question depends on a further question: can the Everettian be made empirically adequate? Mover, even if the standard Everettian be adequate, the Everettian void may suffer from metaphysical semantic challenges. We discuss them this Semantic We with a semantic challenge: are the fundamental laws about there is no material What do the theoretical terms refer to? On standard picture, the fundamental laws are about fundamental material ontology. The terms in the fundamental laws refer to properties fundamental matter mass of point particles). Since there is no ontology in the cosmic scenario, this way of thinking about aboutness
 return to this question in §4.) The everettian CosmiC voId sCeNariO, if iT can be made empiRIcalLy adequate, has the followIng feAtURes: 1. THE fUndamEntal laWS aRE StrOnGlY deTeRMiNistiC. ThEre is no ContingencY at ThE fundamental LEvEl. 2. There is nO maTerial ontoloGy aT the fuNdAmeNTal leVel (No quaNtum stATe, reduCed states, Or MAtter dENsity fiELD). 3. AT the Non-fundamental levEL, tHEre is an emergenT multiPlICiTY Of wOrlDs that can bE cHaracTErized bY NoN-FUNdaMEntal material Ontologies sUCh aS the quAnTum STate, reDuced StATes, Or a matter deNsitY field. 4. The Non-funDAmental FActs can Be deriVed FroM facTS aBoUt tHe FUndAMeNtaL LawS of naturE. 5. AT tHe non-FundAMENTal lEveL, conTingeNcy can reappeaR as DescRIptIons oF the nOn-fuNdAmentAl worlDs. The evErettian WentacuLus pRovides a cOncReTe eXaMple oF The posSibIliTy of the Cosmic vOId. IN sUCH A wOrld, all there is at thE fUNDaMental leVel are THe StROngly-detErMinIstiC LAws. ThE non-FUnDamental Facts aRE dErIved froM tHem.8 7For ThE maTteR-densITy onTology, We can posTulatE The following laW-The Matter DensITy eQUaTIon: m(X, t) = tR(M(x)W(t)) (3) where x Is a pHYsicAl spACe VarIAble, M(X) = ∑i miδ(qi − X) Is THe mass-density operatOr, Which iS defiNed via the posiTion operatOR qIψ(q1, q2,...qn) = qiΨ(q1, q2,...qN). 8thE Status of space-tIme in This theory IS an interEstinG issue. A dEfender of THE EverettIan CosMic 15 4 chaLLEnGes Can the EverETTian CoSmic voiD scEnario bE maDe eMpiRicAlLy adequatE? That queStIoN dEpEndS on a fURther queStIon: CaN thE EverETtian pIcturE be mAdE eMPirIcally aDEqUATe? MoVeR, eVen iF thE sTandaRd EvERetTian picTure can be EmpIRicaLlY aDequate, The Everettian CoSmic void maY sUffEr from ADDitional Metaphysical and semantic CHallengEs. WE discUss sOme of them In tHis secTioN. 4.1 the SemAntic CHalleNgE We STArt wiTH A sEmaNtIc challengE: wHat Are thE fUndaMental lAws about if there is nO MatErial ontology At tHe fuNDAmEntAL lEVel? whAT do THE theoretical terMs refer to? ON tHE sTandard picTUre, ThE fundamEntal laWs are ABout the FundamentAl materiaL oNtolOGY. ThE terms in thE fundameNtal laws rEFer to PRoPertiEs oF fundaMeNtaL mattEr (e.g. thE MasS of poInt parTiCles). SiNce thErE is no matErial ontology in the cosmiC void sCenarIo, tHis way of tHinKIng About abouTnesS
 return to this question i n §4.) The  Ever ett ian  c osmi c vo id scenario, i f  itcan be made empiricall y ade qu a te,h as  thefollowi n gf e atu re s:  1.  T h efunda men tal law s are stro ngl ydeterministi c .There is n o c ontingency a t t he fun da men t al le vel . 2.Therei s no m aterial o nt o logy a t  the fu n d am enta l level (no quant u ms tate, reducedstates ,o rm a tte r d ensity fie ld ). 3. At then on - f u nda m ental level,there is an eme rgentmu lti p licity  of w or l dsthat can be  cha racterize d by n o n-funda m ental m ateria l o nto logi e ssu chas the qu ant u m s tate, re du ce d sta tes, o r a ma tte r de nsity  field. 4. Th e n on-f u nda menta l fac ts c an  be d erived  from  f acts about thefund amental l aws  o f n at ure.5 . At t henon -fundam ental l e vel ,c o n ti ngency can reappea ra s  d escripti ons of th en on-funda me nta l wo r l ds. T he E v er ettian W entacu l us  p rovides  a  concr et e e xam ple o f  the  possi bility o f the cosmic void. I n  such a world ,  a l l  t h ereisat the fund amen t al l evel ar e t h e str ongly -d e te r ministic laws. Theno n-fund ament al facts arederived fr o m them.8 7 Fort he matter-density  onto logy, we c a n postul ate t he follo wing law- t h e Matter  De nsi tyEqu a t io n: m(x, t) =t r (M(x )W (t)) (3 ) w here xisa p hys ica lspace var iable, M (x )=∑i  mi δ(Qi−  x) is t he  ma ss -de nsity operat or, w hich  i sd efi ned via th e posi ti on  ope rat or  Qiψ( q1,q 2,. ..qn) =  qiψ(q1,q2, . ..qn ).  8 The sta tus of space- ti me in this  t heo ry isa n  interes ting issue. A defendero f the E ver ettia n co smic 15 4  Ch alleng esC an the  Evere ttian  c osm i c  void s ce nar io  be made e m p iri cally  a dequ ate? Th at question depend s  on  a further qu est ion: c an  th e  E v ere tt i anp i cture be made e mpirically  a d eq uate? Move r , e ve n if th e stand ard E v erettia n picture  can be e mp iric a l lyadequate,the Ever ettian co s mic v o id  maysuf fer fr om  ad ditio nal me t aph ysica l andse mantic  chal le nges. We  discuss some of them i n this  sect ion . 4.1 The  Se m ant ic Challe ngeWe start w ith  aseman tic chall enge :  W hat are t he f u ndamental la wsa b ou t if therei s nomater ial ontolo gy a t the fundamental level? What do  the t heo ret i calte rms refer to?Onth e standard  p icture, the  fundame nt a l law s areaboutthe fun d a me n tal ma teri alontology.  Th et erms in  t he fundam enta llaws r efer t o  pro p e rties of fundame ntalm a tter( e.g . the  m ass ofp oint  particles ). Since th ere is  nomater ial ont ol ogy in  th ecosmic voi d  scenario , thi s way o fthin kin g abou t ab o u tness 
 return_to this_question in §4.) The_Everettian cosmic_void_scenario, if_it_can be made_empirically adequate, has_the following features: 1._The fundamental laws_are_strongly deterministic. There is no contingency at the fundamental level. 2. There is no_material_ontology at_the_fundamental_level (no quantum state, reduced_states, or matter density field)._3. At_the non-fundamental level, there is an emergent multiplicity_of_worlds that can_be characterized by non-fundamental material ontologies such as the_quantum state, reduced states, or a_matter density field._4._The_non-fundamental facts can be_derived from facts about the fundamental_laws of nature. 5. At the_non-fundamental level, contingency can reappear as descriptions_of the non-fundamental worlds. The Everettian_Wentaculus provides a concrete example_of the_possibility of the cosmic void._In such a_world, all_there is at_the fundamental level are the strongly-deterministic_laws. The non-fundamental_facts are derived from them.8 7For_the_matter-density ontology, we_can_postulate_the following_law-the Matter Density_Equation:_m(x, t)_=_tr(M(x)W(t)) (3) where x is a_physical_space variable, M(x) = ∑i miδ(Qi −_x) is the mass-density_operator,_which is defined via_the position operator Qiψ(q1, q2,...qn)_= qiψ(q1, q2,...qn). 8The status of_space-time in_this theory_is an interesting issue. A defender of the Everettian cosmic 15_4 Challenges Can the Everettian cosmic_void scenario be made_empirically adequate?_That_question depends on_a_further question:_can the Everettian picture be made empirically_adequate? Mover,_even if the standard Everettian picture_can be empirically adequate,_the_Everettian cosmic void may suffer from_additional metaphysical and semantic challenges. We_discuss some of them in_this_section._4.1 The Semantic Challenge We_start with a semantic challenge: What_are the fundamental_laws about if there is no material_ontology_at the fundamental level? What do_the_theoretical terms refer to? On the_standard_picture,_the fundamental laws are about_the fundamental material ontology. The terms_in the fundamental laws refer to properties of fundamental_matter (e.g. the_mass of point particles). Since_there_is_no material ontology in the cosmic void scenario, this way_of thinking_about aboutness