Metaphors We Compute By

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METAPHORS WE COMPUTE BY ALVARO VIDELA - @old_sound

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THE YEAR IS 1980

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METAPHORS WE LIVE BY GEORGE LAKOFF & MARK JOHNSON

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METAPHOR ISN’T JUST A MATTER OF POETRY AND RHETORICAL FLOURISH

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METAPHORS PERMEATE ALL AREAS OF OUR LIVES METAPHORS DICTATE

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METAPHORS PERMEATE ALL AREAS OF OUR LIVES METAPHORS DICTATE ▸ How we think

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METAPHORS PERMEATE ALL AREAS OF OUR LIVES METAPHORS DICTATE ▸ How we think ▸ How we behave

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METAPHORS PERMEATE ALL AREAS OF OUR LIVES METAPHORS DICTATE ▸ How we think ▸ How we behave ▸ How we perceive

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METAPHORS PERMEATE ALL AREAS OF OUR LIVES METAPHORS DICTATE ▸ How we think ▸ How we behave ▸ How we perceive ▸ How our conceptual system is built

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ARGUMENT IS WAR

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR ▸ Your claims are indefensible

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR ▸ Your claims are indefensible ▸ He attacked every weak point in my argument

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR ▸ Your claims are indefensible ▸ He attacked every weak point in my argument ▸ I demolished his argument

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR ▸ Your claims are indefensible ▸ He attacked every weak point in my argument ▸ I demolished his argument ▸ I never won an argument with him

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METAPHORS IN EVERYDAY EXPRESSIONS ARGUMENT IS WAR ▸ Your claims are indefensible ▸ He attacked every weak point in my argument ▸ I demolished his argument ▸ I never won an argument with him ▸ His criticisms were right on target

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WHAT IF ARGUMENT IS A DANCE?

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I’M NOT CONVINCED

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LET’S TALK ABOUT POLITICS

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I’M STILL NOT CONVINCED

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HUMAN RESOURCE MANAGEMENT

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PEOPLE ARE NOT RESOURCES

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TRIGGER WARNING

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GIVING A PLATFORM TO RACISTS

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“WRESTLING WITH INCLUSION AT XYZCONF”

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“WRESTLING WITH INCLUSION AT XYZCONF”

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LET’S TALK ABOUT COMPUTERS

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COMPUTERS

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METAPHORS ENABLE UNDERSTANDING

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JULIET IS LIKE THE SUN

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JULIET GAVE ME SKIN CANCER

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METAPHORS OBSCURE UNDERSTANDING

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TELE-GRAPH

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“SOMETIMES OUR TOOLS DO WHAT WE TELL THEM TO. OTHER TIMES, WE ADAPT OURSELVES TO OUR TOOLS' REQUIREMENTS” Nicholas Carr THE SHALLOWS

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METAPHORS ARE THE TOOLS OF THOUGHT

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METAPHORS AND CODE

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BEST UNKNOWN PAPER

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“TO PROGRAM IS TO WRITE TO ANOTHER PROGRAMMER ABOUT OUR SOLUTION TO A PROBLEM” Charles Baker A PROGRAMER’S ROLE

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“NO ONE HAS SEEN A PROGRAM WHICH THE MACHINE COULD NOT COMPREHEND BUT WHICH HUMANS DID” Charles Baker A PROGRAMER’S ROLE

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TYPES ARE THE CHARACTERS THAT TELL THE STORY OF OUR PROGRAMS

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PROGRAMMING WITH ABSTRACT DATA TYPES

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WITHOUT TYPES WE JUST HAVE OPERATIONS ON STREAM OF BYTES

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CHOOSING THE RIGHT DATA STRUCTURE

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CHOOSE THE RIGHT DATA STRUCTURE

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CHOOSE THE RIGHT DATA STRUCTURE ▸ Array

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CHOOSE THE RIGHT DATA STRUCTURE ▸ Array ▸ Set

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CHOOSE THE RIGHT DATA STRUCTURE ▸ Array ▸ Set ▸ LinkedList

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CHOOSE THE RIGHT DATA STRUCTURE ▸ Array ▸ Set ▸ LinkedList ▸ Queue

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CHOOSE THE RIGHT DATA STRUCTURE ▸ Array ▸ Set ▸ LinkedList ▸ Queue ▸ Stack

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A PROGRAM’S EXPLANATORY POWER IS THE MEASURE OF ITS OWN ELEGANCE

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DATA STRUCTURES HAVE EXPLANATORY POWER

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COGNITIVE LEAPS

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TASK SCHEDULING

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QUEUEING THEORY TASK SCHEDULING

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ROUTE PLANNING

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GRAPH THEORY ROUTE PLANNING

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DATABASE REPLICATION

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RUMOUR MONGERING DATABASE REPLICATION

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EPIDEMICS DATABASE REPLICATION

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SO EVERYTHING IS A METAPHOR?

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I DON’T BELIEVE YOU

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Whenever nodes need to agree on a common value, we start a consensus algorithm to decide on a value. There's usually a leader process that takes care of making the ﬁnal decision based on the votes it has received from its peers. SEVEN METAPHORS DISTRIBUTED SYSTEMS METAPHORS

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SEVEN METAPHORS DISTRIBUTED SYSTEMS METAPHORS Nodes communicate sending messages over a channel, which might get congested due to too much trafﬁc. This could create an information bottleneck, with queues at each end of the channels backing up.

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FOUR METAPHORS DISTRIBUTED SYSTEMS METAPHORS These bottlenecks might render one or more nodes unresponsive, causing network partitions. Is the process that's taking too long to respond dead? We won't know unless we set a timeout…

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INTERMEZZO

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PACKAGING

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BUILDING GHC

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CONTAINERS ▸ Standard ▸ Ship Anywhere ▸ Train, Ships, Trucks ▸ Stackable ▸ Reusable

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MICROSERVICES

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MICROSERVICES ▸ Decentralised Governance ▸ Monolith vs. Microservice ▸ Isolation ▸ Collaboration ▸ Small is better - Big is cumbersome ▸ David vs. Goliath

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BRING POWER BACK TO THE DEVELOPER AND THE DEVELOPER WILL MAKE YOU A KING

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ERLANG ANYONE?

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“IN ANOTHER DIRECTION, ONE COULD ARGUE THAT MICROSERVICES ARE THE SAME THING AS THE ERLANG PROGRAMMING MODEL, BUT APPLIED TO AN ENTERPRISE APPLICATION CONTEXT”

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WHAT’S ERLANG’S ELEVATOR PITCH?

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MASTER THE ART OF METAPHOR SELECTION

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FIRST GET PEOPLE TO UNDERSTAND THINGS

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THEN EXPLAIN HOW THINGS ACTUALLY WORK

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RABBITMQ A JOB SERVER?

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MASTER THE ART OF MEANING AMPLIFICATION

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OUR PROGRAM IS THE METAPHOR FOR THE SOLUTION WE FOUND

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REFERENCES ▸ Lakoff, George, and Mark Johnson. “Metaphors We Live By” ▸ Gleick, James. “The Information: A History, a Theory, a Flood” ▸ Geary, James. “I Is an Other: The Secret Life of Metaphor and How It Shapes the Way We See the World” ▸ Demers, Alan, Dan Greene, Carl Hauser, Wes Irish, and John Larson. “Epidemic Algorithms for Replicated Database Maintenance”

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CREDITS - CC BY-NC-ND ▸ Office Workers: https://flic.kr/p/5WwpeV ▸ Sun: https://flic.kr/p/9Q6SY1 ▸ Queue: https://flic.kr/p/8AqWW7 ▸ Consensus: https://flic.kr/p/aws7dH ▸ Bottlenecks: https://flic.kr/p/EJ5Q3 ▸ Gossip: https://flic.kr/p/4bCDr2 ▸ Containers: https://flic.kr/p/nWLQxE

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@old_sound THANK YOU!