Take your Kotlin to the next step, abandon what you’ve learned (in Java)

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Embrace change Abandon what you’ve learned @PreusslerBerlin

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https://www.thecut.com/2018/01/how-to-conquer-your-fear-of-trying-new-things.html From an evolutionary standpoint, trying new things, for much of human history, could have been dangerous

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Dean Burnett, Neuroscientist, author We have a threat-detection system that [..] tags anything unusual or unknown [..], That's what's kept us alive for millions of years

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MINDSETS

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fixed-mindset prevent them from evolving in the acquisition of skills … outside their comfort zone. “Mindset”, Dr. Carol Dweck

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growth-mindset certain amount of curiosity, ease and perseverance in solving difficult problems “Mindset”, Dr. Carol Dweck

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we learn new knowledge by reference to those we already know. We focus on the points of similarity between them to select the information that reaches the brain. http://www.anewya.co.in/why-learn-unlearn-relearn

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What got you here won’t get you there. Book title by Marshall Goldsmith

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It is not the strongest of the species that survives, not the most intelligent [..] It is the one that is the most adaptable to change. Charles Darwin

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Pascal

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C/C++

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Java

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Kotlin

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The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn. Alvin Toffler, Author, Futurist

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CONSTANTS

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Constants In Java: static final In Kotlin: const val But where?

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Constants

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Constants

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Constants

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Constants

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https://twitter.com/PreusslerBerlin/status/1305565623867633666 Constants

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TIME TO UNLEARN

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.. is not about forgetting. It’s about the ability to choose an alternative mental model or paradigm. https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning

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The process of unlearning: 1.) Recognize that the old mental model is no longer relevant or effective. This is a challenge because we are usually unconscious of our mental models https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning

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The process of unlearning: 2.) Find or create a new model that can better achieve your goals. Careful, you will probably see this new model through the lens of the old. https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning

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The process of unlearning: 3.) Ingrain the new mental habits https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning

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GET FUNCTIONAL

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Get functional

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Get functional

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The tools we use have a profound (and devious) influence on our thinking habits, and, therefore, on our thinking abilities. Edsger W. Dijkstra

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OPERATORS

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Operators Thinking of … ? a + b a.plus(b) a > b a.compareTo(b) > 0 a in b b.contains(a) a..b a.rangeTo(b)

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Operators

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Operators

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Operators

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Developing an original and creative idea requires the simultaneous activation of two [..] perhaps even contradictory -- networks University of Haifa 2015 https://www.sciencedaily.com/releases/2015/11/151119104105.htm

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WHAT GOES ON IN THE MINDS OF PROGRAMMERS WHEN THEY READ CODE?

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Understanding Understanding Source Code with Functional Magnetic Resonance Imaging University of Passau, University of Magdeburg, Carnegie Mellon, Georgia Tech, Leibniz Institute for Neurobiology, Metop Research Institute, 2014 http://www.cs.cmu.edu/~ckaestne/pdf/icse14_fmri.pdf Studying programming in the neuroage: just a crazy idea? Chemnitz University of Technology, 2020 https://dl.acm.org/doi/10.1145/3347093 Studies

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To our surprise, we could not observe any activity in the direction of mathematical or logical thinking, ... https://medicalxpress.com/news/2020-06-language-brain-scans-reveal-coding.html

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The image data clearly showed activation in the test subjects' left brain areas, which are mainly associated with speech comprehension. https://medicalxpress.com/news/2020-06-language-brain-scans-reveal-coding.html

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NAMES

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COBOL variable names [..] can use any of the uppercase alphabet characters, the digits 0 through 9, and the hyphen (but not as a starting character).

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Kotlin Something inside us cringe

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social missteps activate regions in the brain, [..] that have been previously associated with physical pain. University of Michigan, University of Colorado, Boulder, Columbia University, New York Psychiatric Institute, https://sciencephenomena.wordpress.com/2015/05/10/the-neurological-aspect-of-cringing/

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When people express opinions that differ from yours, take it as a chance to grow. Be curious, not defensive. http://www.anewya.co.in/why-learn-unlearn-relearn

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Practicing unlearning will make it easier and quicker to make the shifts as your brain adapts. https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning

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PROPERTIES

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Properties

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Properties

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Properties

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Properties

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Properties

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Properties

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Properties

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DELEGATES

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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Property Delegates

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EXTENSION FUNCTIONS

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Extension functions

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Extension functions

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Conceptual Affinity. Certain bits of code want to be near other bits. They have a certain conceptual affinity. The stronger that affinity, the less vertical distance there should be between them. (Clean Code, Robert Martin)

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Extension functions

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Extension functions

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Extension functions

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Property Delegates

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Property Delegates

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Think outside the box!

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Think outside the box!?

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When you look at the neuroscience of creativity, you see that it’s physically impossible for your brain to “Think outside the box.” http://www.jaredvolle.com/why-thinking-outside-the-box-is-completely-wrong/

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That’s simply not how the brain is wired. It’s like asking your brain to fire a neuron that doesn’t exist. http://www.jaredvolle.com/why-thinking-outside-the-box-is-completely-wrong/

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There is nothing outside of “the box” except for more boxes. [..] the trick is to think between boxes. http://www.jaredvolle.com/why-thinking-outside-the-box-is-completely-wrong/

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GENERICS

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Generics ● Kotlin generics offer some new changes ● Don’t be afraid if reified syntax

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Generics

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Generics

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Generics

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Generics

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HOW TO GET THERE?

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Habits ● Habits are the brain’s internal drivers ● brain forms neuronal connections based on what you do repeatedly in your life — both good and bad. ● Every time you act in the same way, a specific neuronal pattern is stimulated and becomes strengthened in your brain.

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How to get there - Unlearn: build new models w/o looking through old lenses - Connect the boxes - Practise - Change habits

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Nothing so needs reforming as other people’s habits Mark Twain

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You tell me, I forget. You teach me, I remember. You involve me, I learn Benjamin Franklin

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When your brain expects a reward even [..], you are more likely to pursue the new routine and stick to it. https://medium.com/swlh/to-break-bad-habits-you-really-have-to-change-your-brain-the-neurosci ence-of-change-da735de9afdf

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Thank you ● World’s largest open audio platform ● Founded in 2007 ● 200 million tracks, 25 million creators ● What’s next in music is first on SoundCloud

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Further reads ● https://medicalxpress.com/news/2020-06-language-brain-scans-reveal-coding.html ● https://www.makeuseof.com/tag/how-programming-affects-brain/ ● https://medium.com/swlh/to-break-bad-habits-you-really-have-to-change-your-brain-the-neuroscience-of-chang e-da735de9afdf ● https://www.sciencedaily.com/releases/2015/11/151119104105.htm ● http://www.jaredvolle.com/why-thinking-outside-the-box-is-completely-wrong/ ● https://www.thecut.com/2018/01/how-to-conquer-your-fear-of-trying-new-things.html ● https://hbr.org/2016/11/why-the-problem-with-learning-is-unlearning ● https://thriveglobal.com/stories/unlearning-to-learn/ ● https://proandroiddev.com/keep-your-interfaces-simple-e025d515e3b9 ● https://www.youtube.com/playlist?list=PLQ176FUIyIUY6SKGl3Cj9yeYibBuRr3Hl&app=desktop

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Thank you @PreusslerBerlin