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Sometimes the illusion is more useful than reality.

If you doubt this, consider all the useful 3D representations you use daily, drawn on 2D surfaces...whether they be games or icons or "3D bar charts" drawn on computer screens; or photos or painting around your home or office; exploded views in assembly manuals; signposts and diagrams of all kinds.

Further, 'inaccurate conceptual models' can serve both the beginner and the expert alike.

If you covered any electrical or electronics in your education, you probably started off thinking that "electricity flows from positive to negative". And then got pissed with your previous instructors when they queered the pot by telling that electrons actually flow from negative to positive. And then queered it further by telling you that most of the equations you would need for real world electrical and electronic engineering would require you to continue signing your electrical quantities as if the former was true; due to convention.

Getting hung up on reality has probably been the downfall of more students come exam time than inability.


Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^7: If you believe in Lists in Scalar Context, Clap your Hands by BrowserUk
in thread If you believe in Lists in Scalar Context, Clap your Hands by oshalla

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