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        <OrganizationChangeSuprtOrgInd>0</OrganizationChangeSuprtOrgInd>
        <SupportNonSupportedOrgInd>1</SupportNonSupportedOrgInd>
        <PaymentSubstantialContribtrInd>0</PaymentSubstantialContribtrInd>
        <LoanDisqualifiedPersonInd>0</LoanDisqualifiedPersonInd>
        <ControlledDisqualifiedPrsnInd>0</ControlledDisqualifiedPrsnInd>
        <DisqualifiedPrsnControllIntInd>0</DisqualifiedPrsnControllIntInd>
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        <ExcessBusinessHoldingsRulesInd>0</ExcessBusinessHoldingsRulesInd>
        <ContributionControllerInd>0</ContributionControllerInd>
        <ContributionFamilyInd>0</ContributionFamilyInd>
        <Contribution35ControlledInd>0</Contribution35ControlledInd>
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      <MajorityDirTrstSupportedOrgInd>1</MajorityDirTrstSupportedOrgInd>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART IV, SECTION A, LINE 6:</FormAndLineReferenceDesc>
        <ExplanationTxt>AS LISTED IN SCHEDULE I, THE LIGHTCONE FOUNDATION MADE GRANTS TO 501(C)(3) ORGANIZATIONS IN SUPPORT OF THE MISSION OF THE FUTURE OF LIFE FOUNDATION, WHICH HAS THE SAME MISSION AS THE LIGHTCONE FOUNDATION.</ExplanationTxt>
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        <ContributorBusinessName>
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          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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      <TotalBookValueSecuritiesAmt>19719505</TotalBookValueSecuritiesAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
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      <NetUnrealizedGainsInvstAmt>43973387</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>43973387</RevenueNotReportedAmt>
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      <RevenueNotReportedFinclStmtAmt>346143</RevenueNotReportedFinclStmtAmt>
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      <ExpensesSubtotalAmt>12195042</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>346143</InvestmentExpensesNotIncld2Amt>
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      <TotalExpensesPerForm990Amt>12541185</TotalExpensesPerForm990Amt>
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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION IS EXEMPT FROM FEDERAL INCOME TAX UNDER IRC SECTION 501(C)(3). FOR THE YEARS ENDED DECEMBER 31, 2024 AND 2023, THERE WERE NO ACTIVITIES THAT REQUIRE RECOGNITION OR DISCLOSURE OF MATERIAL UNCERTAIN TAX LIABILITIES FROM UNRELATED BUSINESS INCOME.</ExplanationTxt>
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          <BusinessNameLine1Txt>SILICON VALLEY COMMUNITY FOUNDATION</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>444 CASTRO ST SUITE 140</AddressLine1Txt>
          <CityNm>MOUNTAIN VIEW</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94041</ZIPCd>
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        <PurposeOfGrantTxt>CHARITABLE WORK IN SUPPORT OF THE FUTURE OF LIFE FOUNDATION'S MISSION</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>FUTURE OF LIFE INSTITUTE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>933 MONTGOMERY AVE 1012</AddressLine1Txt>
          <CityNm>NARBRETH</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19072</ZIPCd>
        </USAddress>
        <RecipientEIN>471052538</RecipientEIN>
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        <PurposeOfGrantTxt>CHARITABLE WORK IN SUPPORT OF THE FUTURE OF LIFE FOUNDATION'S MISSION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>BENEFICIAL AI FOUNDATION</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>3640 CONCORD PIKE</AddressLine1Txt>
          <CityNm>WILMINGTON</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19803</ZIPCd>
        </USAddress>
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        <PurposeOfGrantTxt>CHARITABLE WORK IN SUPPORT OF THE FUTURE OF LIFE FOUNDATION'S MISSION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CIVIL LIBERTIES FOUNDATION</BusinessNameLine1Txt>
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          <AddressLine1Txt>1014 N DUPONT HWY 1313</AddressLine1Txt>
          <CityNm>DOVER</CityNm>
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        <PurposeOfGrantTxt>CHARITABLE WORK IN SUPPORT OF THE FUTURE OF LIFE FOUNDATION'S MISSION</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>IMPROVE THE NEWS FOUNDATION</BusinessNameLine1Txt>
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          <AddressLine1Txt>128 SUNSET BLVD 1177</AddressLine1Txt>
          <CityNm>NEW CASTLE</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19720</ZIPCd>
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        <RecipientEIN>853391849</RecipientEIN>
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        <PurposeOfGrantTxt>CHARITABLE WORK IN SUPPORT OF THE FUTURE OF LIFE FOUNDATION'S MISSION</PurposeOfGrantTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION SETS UP A DONOR ADVISED FUND WITH SILICON VALLEY COMMUNITY FOUNDATION AND CLOSELY ADVISES AND MONITORS THE DISTRIBUTION OF THE FUNDS TO SUPPORT LF'S MISSION. THE ORGANIZATION ALSO CONTRIBUTES TO ITS RELATED ORGANIZATIONS TO SUPPORT THEIR MISSION.</ExplanationTxt>
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      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>466686</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>10462</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>16441</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>493589</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      </RltdOrgOfficerTrstKeyEmplGrp>
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        <PersonNm>MAX TEGMARK</PersonNm>
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        <CompensationBasedOnRltdOrgsAmt>409755</CompensationBasedOnRltdOrgsAmt>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
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        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>409755</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION BY THE FUTURE OF LIFE INSTITUTE, A RELATED ORGANIZATION, WAS DETERMINED ACCORDING TO ITS POLICIES.</ExplanationTxt>
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        <DefaultInd>0</DefaultInd>
        <BoardOrCommitteeApprovalInd>0</BoardOrCommitteeApprovalInd>
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        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>125741</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>SECURITY EXCHANGE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
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      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
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        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
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        <ExplanationTxt>ALL BOARD MEMBERS ARE SENT FORM 990 AND ATTACHMENTS TO REVIEW BEFORE THE RETURN IS FILED.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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          <CityNm>NARBERTH</CityNm>
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          <ZIPCd>19072</ZIPCd>
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      <IdRelatedTaxExemptOrgGrp>
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          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>95008</ZIPCd>
        </USAddress>
        <EIN>880926067</EIN>
        <PrimaryActivitiesTxt>RESEARCH &amp; GRANTMAKING</PrimaryActivitiesTxt>
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          <BusinessNameLine1Txt>FLI FLIE LF</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>IMPROVE THE NEWS FOUNDATION (ITNF)</BusinessNameLine1Txt>
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          <StateAbbreviationCd>DE</StateAbbreviationCd>
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        </USAddress>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>BENEFICIAL AI FOUNDATION (BAIF)</BusinessNameLine1Txt>
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        <EIN>884400777</EIN>
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      <IdRelatedTaxExemptOrgGrp>
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          <ZIPCd>19901</ZIPCd>
        </USAddress>
        <EIN>921349292</EIN>
        <PrimaryActivitiesTxt>FURTHERING CIVIL LIBERTIES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
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        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>FLI FLF FLIE LF BAIF SAIRI ITNF</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>SOCIAL AI RESEARCH INSTITUTE (SAIRI)</BusinessNameLine1Txt>
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          <AddressLine1Txt>1 CHESTNUT HILL PLZ 1290</AddressLine1Txt>
          <CityNm>NEWARK</CityNm>
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          <ZIPCd>19713</ZIPCd>
        </USAddress>
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          <BusinessNameLine1Txt>FLI FLF FLIE LF BAIF ITNF CLF</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>FUTURE OF LIFE INSTITUTE EUROPE (FLIE)</BusinessNameLine1Txt>
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          <CityNm>GENEVA</CityNm>
          <CountryCd>SZ</CountryCd>
          <ForeignPostalCd>GE 1208</ForeignPostalCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>GRANTMAKING</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>SZ</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>FLI FLF LF</BusinessNameLine1Txt>
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      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
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          <BusinessNameLine1Txt>FUTURE OF LIFE INSTITUTE</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>C</TransactionTypeTxt>
        <InvolvedAmt>6511558</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>BOOK</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
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