Path: ...!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: John Smith Newsgroups: comp.theory,sci.logic Subject: Re: Halting Problem is wrong two different ways Date: Wed, 5 Jun 2024 04:12:38 +0200 Organization: A noiseless patient Spider Lines: 17 Message-ID: References: <87h6eamkgf.fsf@bsb.me.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Wed, 05 Jun 2024 04:12:39 +0200 (CEST) Injection-Info: dont-email.me; posting-host="83860e4324238056892f5ef29ec401be"; logging-data="652848"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/wM1tYtMh5BVisoLZlB9St" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:loiygaJuyjIs/N+RtlV8if68zlc= In-Reply-To: Content-Language: en-US Bytes: 2123 On 5/06/24 04:05, olcott wrote: > On 6/4/2024 8:48 PM, Richard Damon wrote: >> But the question it asks is an OBJECTIVE question that doesn't depend >> on who it is asked of. >> > > When H is asked about the behavior of a Machine that is programmed > to do the opposite of whatever it says then the context that it is H > that is being asked is an inherent aspect of the meaning of this > question and cannot be correctly ignored. Every machine does something. It either halts, or it doesn't. If a machine halts, then it halts even if you ask someone different. If the machine halts when I ask Bob whether it halts and he says it halts, then it still halts when I ask Alice whether it halts and she says it doesn't halt. Alice is wrong. The linguistic context doesn't change the fact that it halts.