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Path: ...!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: olcott <polcott333@gmail.com> Newsgroups: comp.theory Subject: Re: Hypothetical possibilities V2 Date: Tue, 23 Jul 2024 09:32:36 -0500 Organization: A noiseless patient Spider Lines: 34 Message-ID: <v7oeu4$17h8r$4@dont-email.me> References: <v7m05v$n73h$1@dont-email.me> <v7nlkb$13vn6$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 23 Jul 2024 16:32:36 +0200 (CEST) Injection-Info: dont-email.me; posting-host="c53d2de4672c698529f342dcfedcfa3a"; logging-data="1295643"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/X/OxtU21e3rJYD9+1eTuM" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:Q3xrNmYZPLbZdEPBTYAlpcrmZEY= Content-Language: en-US In-Reply-To: <v7nlkb$13vn6$1@dont-email.me> Bytes: 1985 On 7/23/2024 2:20 AM, Mikko wrote: > On 2024-07-22 16:08:31 +0000, olcott said: > >> void DDD() >> { >> HHH(DDD); >> return; >> } >> >> int main() >> { >> HHH(DDD); >> } >> >> Of the two hypothetical possible ways that HHH can be encoded: >> (a) HHH(DDD) is encoded to abort its simulation. >> (b) HHH(DDD) is encoded to never abort its simulation. >> >> We can know that (b) is wrong because this fails to meet the design >> requirement that HHH must itself halt. >> >> We also know that any simulation that must be aborted to prevent the >> infinite execution of the simulator is necessarily a non-halting input. > > What was wrong in the original "Hypothetical possibilities"? > How is V2 fixed? > I don't know. One of the readers got confused so I rewrote it. -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer