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Meaningness's profile
David Chapman
David Chapman
David Chapman
@Meaningness

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David Chapman

@Meaningness

Better ways of thinking, feeling, and acting—around problems of meaning and meaninglessness; self and society; ethics, purpose, and value.

meaningness.com/about-my-sites
Joined September 2010

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    1. David Chapman‏ @Meaningness 15 Apr 2019
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      The original version of Simula (Simula I, 1962) was conceived as primarily a problem formulation language, and only secondarily a programming language. It had no “objects”; rather, “processes” which consisted of a record/struct and an event generator. http://www.edelweb.fr/Simula/slp-1.pdf …pic.twitter.com/4z1o53OTtm

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    2. David Chapman‏ @Meaningness 15 Apr 2019
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      Formal languages for describing systems still exist, but don’t seem to provide much value. Simula I apparently did in the mid-60s. What has changed? (I’ve often toyed with ideas for developing a better one.) https://hannemyr.com/cache/knojd_acm78.pdf …pic.twitter.com/Hi0cACtb5u

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      David Chapman‏ @Meaningness 15 Apr 2019
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      The arguably-disastrous invention of OOP was in Simula 67. I had read that the original idea of OOP was coherent, and C++ was based on a muddled misunderstanding, but TIL Simula 67 was already a tangled mass of confusions. https://hannemyr.com/cache/knojd_acm78.pdf …pic.twitter.com/eJFy076HSj

      3:59 PM - 15 Apr 2019
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      • muflax brrr Seitz zing mud chandelier David Kieltyka
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        2. David Chapman‏ @Meaningness 15 Apr 2019
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          The motivations for Simula 67 (and so OOP) were dual. Simula I’s fixed event loop was restrictive; they wanted a language within which it could be expressed, to give greater flexibility. And, they loved Algol 60 except for its numerous deficiencies, which they hoped to fix.pic.twitter.com/3KYnsQ0uuq

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        3. David Chapman‏ @Meaningness 15 Apr 2019
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          Algol’s underlying problem was lack of closures. If you have them, all its weird specific issues (like, yikes, call-by-name) go away. OOP languages are all Algol-derivatives, and it seems that OOP was always an incoherent bag of kludges for working around closurelessness.pic.twitter.com/ZkaT4whPVQ

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        4. David Chapman‏ @Meaningness 15 Apr 2019
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          This thread prompted by writing about ontological remodeling in the history of software technology.

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        5. David Chapman‏ @Meaningness 15 Apr 2019
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          Disclaimer 1: closures were not implemented cleanly in any language until the 80s, so it’s not Simula’s fault that it didn’t use them. Disclaimer 2: I have not yet studied Smalltalk, whose ontology may be more coherent than Simula 67’s.

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        6. End of conversation

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