diff --git a/20-21/Lectures/#DMCA.org# b/20-21/Lectures/#DMCA.org#
deleted file mode 100644
index cadf7be..0000000
--- a/20-21/Lectures/#DMCA.org#
+++ /dev/null
@@ -1,124 +0,0 @@
-# -*- mode: org -*-
-#+TITLE: The Digital Millennium Copyright Act:
-#+AUTHOR: Dr Carey Pridgeon, Dr Nazaraf Shah
-* setup :noexport:
-#+OPTIONS: reveal_center:t reveal_progress:t reveal_history:t reveal_control:t
-#+OPTIONS: reveal_mathjax:t reveal_rolling_links:t reveal_keyboard:t reveal_overview:t num:nil
-#+OPTIONS: reveal_width:1200 reveal_height:800
-#+OPTIONS: toc:nil num:nil H:2 ^:{}
-#+REVEAL_MARGIN: 0.2
-#+REVEAL_MIN_SCALE: 0.5
-#+REVEAL_MAX_SCALE: 2.5
-#+REVEAL_TRANS: none
-#+REVEAL_THEME: night
-#+REVEAL_HLEVEL: 999
-#+REVEAL_EXTRA_CSS: css/presentation.css
-#+REVEAL_ROOT: https://cdn.jsdelivr.net/reveal.js/3.0.0/
-#+STARTUP: showeverything
-# Licenced under Creative Commons Attribution-ShareAlike 4.0
-# International by Dr Carey Pridgeon 2020
-* The Digital Millennium Copyright Act
-**
-- The Digital Millennium Copyright Act, or DMCA was brought into law in the US
- in 1998.
-- By implementing two 1996 treaties of the World Intellectual Property
- Organization it criminalizes production and dissemination of technology,
- devices, or services intended to circumvent measures that control access to
- copyrighted works.
-- In short, in seeks to prevent the diseminination, *by any means*, of original
- copyrighted works by anyone but the copyright holder.
-- This includes piracy (obviously), copying videos or DVD's.
-**
-- It's legal to make a copy of any form of media you own, for personal
- use. However, it is *technically* not legal to circumvent copy protection
- measures.
-- Since these are routinely used on almost all digital media, most people seem to assume
- the personal use clause no longer exists.
-**
-- Video clips from any movie can be used when creating another video, and this
- is most often seen on platforms such as Youtube.
-- However such use often causes those videos to be claimed by the original
- content creator, even when usage falls within the realm of fair use.
-**
-- Music sampling, if the result is either sold or placed online, will be a
- target for litigation, as sampled songs became so popular, remixing so much
- older music, the copyright holders of that music started taking the samplers
- to court
-- Sometimes these cases resulted in them demanding all of the profits [[https://en.wikipedia.org/wiki/Grand_Upright_Music,_Ltd._v._Warner_Bros._Records_Inc.][Grand
- Upright Music, Ltd. v. Warner Bros. Records Inc.]], [[https://www.ip-watch.org/2016/06/28/us-courts-split-on-legality-of-music-sampling/][US Courts Split On Legality
- Of Music Sampling]]., [[https://flypaper.soundfly.com/discover/5-music-copyright-cases-every-songwriter-should-know-about/][5 Music Copyright Cases Every Songwriter Should Know About]]
-** Is The DMCA Fair
-- One thing it set out to do was remove fair use, because fair use isn't
- profitable.
-- I own a good number of DVDs. If the full force of the DMCA were allowed to
- take hold I would be forced to replace my entire collection each time
- technology advanced to the point my current collection became unusable. This
- happened to my audio cassettes, and to my video tapes (although both of those
- wore out through re-use, so we'ren't that good anyway).
-**
-- Some things, like my BBC Shakespeare play DVD boxset, can't be so easily
- replaced. Others got their soundtracks replaced because obtaining the rights
- to the original music used again would cost too much for such obscure shows.
-- If they get re-released at all, why do this when there's streaming now.
-- Much better to have a reguler income from customers who will be impressed by
- 'hundreds of shows available', but likely only watch the new ones.
-**
-- Without private copy rights, Lots of these shows wouldn't be available. Once
- streaming replaces personal ownership completely, there won't be any option to
- flick through your old collection. That has more appeal than you might think.
-- Mind you, DVD itself is a dead format, private *digital* copies are the future,
- and I think this is what most concerns copyright protection people, since
- digital copies can be shared.
-- However, so could filmstock (more on this later), and audiotape, then
- videotape and DVD. None of that, including online piracy, has brought down the
- music, movie or television industries. Producing terrible content no-one's
- interested in buying's done most of the harm.
-** Let's talk about Hollywood
-- One of the groups that wield the DMCA most is Hollywood, using it to protect
- their movies, (currently, for some bizarre reason, from being used in Youtube
- videos which would actually raise the profile of their products, but I don't
- get how they work, which they either take over, monetise or take down).
-- Disney in particular have had US Copyright extended *specifically* to enable
- them to retain ownership of their Mickey Mouse character. Loads of content
- would now be in the public domain were it not for Disney's desire to retain
- ownership of the mouse.
-
-**
-- What's really interesting is how Hollywood started. A group of film makers ran
- all the way to California (a long distance at the time) to get away from this
- guy, Thomas Edison, and his fim camera patents and copyrights, because his
- rights enforcement was so severe it prevented them from making any significant
- profit.
-[[file:img/Thomas_Edison.jpg]]
-**
-- Yet at the same time Edison took the entire catalogue of pioneering french
- film maker Georges Méliès, now known as the pioneer of film special effects,
- inventing many of those we know today more than a hundred years ago.
-- By releasing his entire catalogue of movies and taking credit, he stole
- millions of dollars from Méliès. Lacking the financial buffer this would have
- given him this, among too many pressures to list here, caused him to die
- bankrupt [[https://en.wikipedia.org/wiki/Georges_M%C3%A9li%C3%A8s][Wikipedia page on Méliès]]
-[[file:img/George_Melies.jpg]]
-**
-- One could make the argument the DMCA exist because the US has learned from
- their mistakes, but as these mistakes seem to be ongoing, with the oppression
- of new artists, and software developers trying to create innovative products,
- I doubt this the case.
-- Microsoft cofounder Paul Allen, in spite of being a billionaire, has filed
- patent and copyright infringement cases against Apple, AOL, Facebook, Google,
- and anyone his *definitely not a patent troll* company can find who might be
- infringing on one of the many thousands of patents they've managed to buy up.
-- Since buying thousands of vaguely worded software patents and then suing
- companies with them is exactly how patent trolls behave, it's kind of
- difficult to think this isn't exactly what they are.
-
-
-
-** Obligatory XKCD
-file:img/DMCA.png
-- Copyright:
-- Mirrored to avoid bandwidth stealing
-** Licence for this work
-- Licensed under Creative Commons Attribution-ShareAlike 4.0
- International by Dr Carey Pridgeon 2020
-- (Licence does not cover linked images owned by other content creators)
diff --git a/20-21/Lectures/.DS_Store b/20-21/Lectures/.DS_Store
index d7499e6..af000be 100644
Binary files a/20-21/Lectures/.DS_Store and b/20-21/Lectures/.DS_Store differ
diff --git a/20-21/Lectures/Being_An_Open_Source_Developer.org b/20-21/Lectures/Being_An_Open_Source_Developer.org
index 63de9b4..9ac1b90 100644
--- a/20-21/Lectures/Being_An_Open_Source_Developer.org
+++ b/20-21/Lectures/Being_An_Open_Source_Developer.org
@@ -10,7 +10,7 @@
#+REVEAL_MIN_SCALE: 0.5
#+REVEAL_MAX_SCALE: 2.5
#+REVEAL_TRANS: none
-#+REVEAL_THEME: simple
+#+REVEAL_THEME: night
#+REVEAL_HLEVEL: 999
#+REVEAL_EXTRA_CSS: css/presentation.css
#+REVEAL_ROOT: https://cdn.jsdelivr.net/reveal.js/3.0.0/
@@ -77,11 +77,10 @@
developments in the community
- At present so far as I'm aware the most common method used to arrange these is
the [[https://www.meetup.com][Meetup]] Site.
-- While not dedicated solely, or even initially, at Open Source. This site
- allows for easy creation of groups and for those groups to meet either online
- or in person.
-- It would be nice if the site were itself an Open Source project, but for the moment no
- Open Source equivalent exists.
+- While not dedicated solely at Open Source. This site allows for easy creation
+ of groups and for those groups to meet either online or in person.
+- It would be nice if the site were itself an Open Source project, but for the
+ moment no Open Source equivalent exists.
diff --git a/20-21/Lectures/DMCA.html~ b/20-21/Lectures/DMCA.html~
deleted file mode 100644
index 410f7e7..0000000
--- a/20-21/Lectures/DMCA.html~
+++ /dev/null
@@ -1,289 +0,0 @@
-
-
-
The Digital Millennium Copyright Act, or DMCA was brought into law in the US
-in 1998.
-
By implementing two 1996 treaties of the World Intellectual Property
-Organization it criminalizes production and dissemination of technology,
-devices, or services intended to circumvent measures that control access to
-copyrighted works.
-
In short, in seeks to prevent the diseminination, by any means, of original
-copyrighted works by anyone but the copyright holder.
-
This includes piracy (obviously), copying videos or DVD's.
-
-
-
-
-
-
-
-
-
It's legal to make a copy of any form of media you own, for personal
-use. However, it is technically not legal to circumvent copy protection
-measures.
-
Since these are routinely used on almost all digital media, most people seem to assume
-the personal use clause no longer exists.
-
-
-
-
-
-
-
-
-
Video clips from any movie can be used when creating another video, and this
-is most often seen on platforms such as Youtube.
-
However such use often causes those videos to be claimed by the original
-content creator, even when usage falls within the realm of fair use.
-
-
-
-
-
-
-
-
-
Music sampling, if the result is either sold or placed online, will be a
-target for litigation, as sampled songs became so popular, remixing so much
-older music, the copyright holders of that music started taking the samplers
-to court
One thing it set out to do was remove fair use, because fair use isn't
-profitable.
-
I own a good number of DVDs. If the full force of the DMCA were allowed to
-take hold I would be forced to replace my entire collection each time
-technology advanced to the point my current collection became unusable. This
-happened to my audio cassettes, and to my video tapes (although both of those
-wore out through re-use, so we'ren't that good anyway).
-
-
-
-
-
-
-
-
-
Some things, like my BBC Shakespeare play DVD boxset, can't be so easily
-replaced. Others got their soundtracks replaced because obtaining the rights
-to the original music used again would cost too much for such obscure shows.
-
If they get re-released at all, why do this when there's streaming now.
-
Much better to have a reguler income from customers who will be impressed by
-'hundreds of shows available', but likely only watch the new ones.
-
-
-
-
-
-
-
-
-
Without private copy rights, Lots of these shows wouldn't be available. Once
-streaming replaces personal ownership completely, there won't be any option to
-flick through your old collection. That has more appeal than you might think.
-
Mind you, DVD itself is a dead format, private digital copies are the future,
-and I think this is what most concerns copyright protection people, since
-digital copies can be shared.
-
However, so could filmstock (more on this later), and audiotape, then
-videotape and DVD. None of that, including online piracy, has brought down the
-music, movie or television industries. Producing terrible content no-one's
-interested in buying's done most of the harm.
-
-
-
-
-
-
-
Let's talk about Hollywood
-
-
One of the groups that wield the DMCA most is Hollywood, using it to protect
-their movies, (currently, for some bizarre reason, from being used in Youtube
-videos which would actually raise the profile of their products, but I don't
-get how they work, which they either take over, monetise or take down).
-
Disney in particular have had US Copyright extended specifically to enable
-them to retain ownership of their Mickey Mouse character. Loads of content
-would now be in the public domain were it not for Disney's desire to retain
-ownership of the mouse.
-
-
-
-
-
-
-
-
-
-
What's really interesting is how Hollywood started. A group of film makers ran
-all the way to California (a long distance at the time) to get away from this
-guy, Thomas Edison, and his fim camera patents and copyrights, because his
-rights enforcement was so severe it prevented them from making any significant
-profit.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Yet at the same time Edison took the entire catalogue of pioneering french
-film maker Georges Méliès, now known as the pioneer of film special effects,
-inventing many of those we know today more than a hundred years ago.
-
By releasing his entire catalogue of movies and taking credit, he stole
-millions of dollars from Méliès. Lacking the financial buffer this would have
-given him this, among too many pressures to list here, caused him to die
-bankrupt Wikipedia page on Méliès
-
-
-
-
-
-
-
-
-
-
-
-
-
-
One could make the argument the DMCA exist because the US has learned from
-their mistakes, but as these mistakes seem to be ongoing, with the oppression
-of new artists, and software developers trying to create innovative products,
-I doubt this the case.
-
Microsoft cofounder Paul Allen, in spite of being a billionaire, has filed
-patent and copyright infringement cases against Apple, AOL, Facebook, Google,
-and anyone his definitely not a patent troll company can find who might be
-infringing on one of the many thousands of patents they've managed to buy up.
-
Since buying thousands of vaguely worded software patents and then suing
-companies with them is exactly how patent trolls behave, it's kind of
-difficult to think this isn't exactly what they are.
-
-
-
-
-
-
-
-
-
-
Obligatory XKCD
-
-
-
-
-
-
-
Copyright:
-
Mirrored to avoid bandwidth stealing
-
-
-
-
-
-
-
Licence for this work
-
-
Licensed under Creative Commons Attribution-ShareAlike 4.0
-International by Dr Carey Pridgeon 2020
-
(Licence does not cover linked images owned by other content creators)
A polymath is an individual whose knowledge spans a significant number of
-subjects, known to draw on complex bodies of knowledge to solve specific
-problems.
-
-
-
-
-
-
-
-
-
Some examples of Past Polymaths
-
-
Imhotep (~27th century BC)
-
-
-
-
-
-
-
-
-
Starting life as a member of the peasant class, Imhotep was so talented he
-quickly rose through the ranks of Egyptian society to become the Egyptian
-chancellor to the pharaoh Djoser.
-
Credited with designing the first pyramid, Djoser's Step Pyramid. He was also
-the father of medicine, although was unknown to western scholars until
-relatively recently, who largely dismissed the Greeks own assertion that they
-learned so much from Egypt.
-
-
-
-
-
-
-
-
-
After his death Imhotep came to be worshipped as a god, and was believed for
-thousands of years to be responsible for the flow of the Nile river.
-
While so little is known in concrete terms a lot can be inferred from his
-achievements.
-
He was a superb mathematician and architect, able not only to duplicate
-existinge designing but create completely original ones which had never been
-considered before.
-
As Chancellor he would have advised the Pharaoh, which means he would have
-needed to be able to grasp the political, religious, and economic state of the
-entire nation.
-
-
-
-
-
-
-
-
-
Ibn Sina (980 - 1037)
-
-
-
-
-
-
-
-
-
He was one of the most significant Physicians and Astronomers of the early
-Islamic period, writing books on medicine which continued to be used for
-centuries.
-
He also wrote books on: Alchemy, Geography and Geology, Psychology, Islamic
-theology, Logic, Mathematics, Physics and Poetry.
-
-
-
-
-
-
-
-
-
Ibn Rushd (1126—1198)
-
-
-
-
-
-
-
-
-
A Muslim Andalusian polymath and jurist who wrote about over a hundred books,
-covering such varied subjects as philosophy, theology, medicine, astronomy,
-physics, psychology, mathematics, Islamic jurisprudence and law, and
-linguistics.
-
He also attempted to reconcile Aristotelian philosophy with the Muslim world,
-replacing Aristotles examples with ones contemporary readers could more easily
-grasp.
-
-
-
-
-
-
-
-
-
Ibn Khaldun (1332 - 1406)
-
-
-
-
-
-
-
-
-
Considered by many to be father of the modern disciplines of historiography,
-sociology and economics, Ibn Khaldun wrote the Muqaddimah, what may be one of
-the most analysed and influential pieces of Muslim sociological literature
-ever written.
-
He has been proposed as being the originator of the scientific method,
-although I know too little on this subject to comment on whether this would be
-correct.
-
-
-
-
-
-
-
-
-
Maya Angelou (1928-2014)
-
-
-
-
-
-
-
-
-
Born into a family still living under the effects of an incomplete
-emancipation process and suffering the frequent brutalities resulting from
-this, Maya had a difficult early life, which led her into involvement with the
-civil rights movement, and also into becoming a dancer, actor, poet and
-writer.
-
She did too much to list here, but throughout her life she remained active in
-politics and the civil rights movement, being awarded more than fifty
-honorary degrees and serving on two presidential committees.
-
-
-
-
-
-
-
-
-
Too often the term Polymath is used to describe someone who has become rich.
-
Mark Zuckerberg is not a Polymath, He was well educated and from a wealthy
-family.
-
Not only this, but he'd already been given a better education than most of his
-peers at university before getting there. So he may be a famous dropout, but
-in his case, as with most other lauded dropouts in the American business hall
-of fame, he had no need of the degree he would have obtained anyway
-
-
-
-
-
-
-
-
-
While there he had a couple of good ideas which worked (not getting into the
-detail on this aspect), and hired other people to develop them. This isn't how
-Polymathy works, that's how business works.
-
Also, being a Polymath doesn't mean you will become rich anyway, it means you
-will be more likely to end up doing something you enjoy.
-
Trust me, this is vastly more important. Go watch a few speeches by Jim
-Carrey if you don't want to take my word for it.
-
-
-
-
-
-
-
-
-
Can you become a Polymath? The simple answer to this is yes, but it, like
-anything else worth doing, takes work.
-
Can you become another Imhotep or Ibn Khaldun? Well that's a different matter,
-but you don't need to reach those heights to have a deeply satisfying career,
-or make a significant impact.
-
As stated at the beginning of this lecture, it literally means learning a
-number of different subjects (and being able to apply them).
-
These can be aspects of computer science when you start out, there certainly
-are a lot of aspects to pick up, and right now you know so few, but true
-polymathy involves diverse fields.
-
-
-
-
-
-
-
-
-
Also, Computing is a massive field, and we've only started learning all the
-areas it can be applied to.
-
Pre 2000's, no-one really thought there would be any money to be made in
-social media.
-
Apps were developed, but only as additions to existing services
-which were perceived as the real money makers (much like the attitude of big
-iron makers to software to start with).
-
Part of this thinking was due to a narrow world view, if you think this
-behaviour has ended you're mistaken, we need polymaths.
-
-
-
-
-
-
-
-
-
Internet Relay ChatIRC had been around for years, as had chat features in
-games, but this wasn't social media as you know it today.
-
It happens that many of the things now prevalent in social media chatting now
-come from this early phase of in game only chat systems. It wasn't a new
-thing, they just changed its target audience, and actually removed some of
-its original functionality.
-
IRC and in game chatting is still going strong, with the latter enhanced by
-audio and sometimes video of players.
-
-
-
-
-
-
-
-
-
Studying beyond your field is generally a good idea. This is when ideas
-collide.
-
Open Source work and eventually collaboration provides the best opportunity
-for this.
-
To stat with though, just learning different subjects, widening your knowledge
-base, moving towards polymathy is the best idea.
-
-
-
-
-
-
-
-
-
Your employer, if you have one, might have courses on offer, so if they do,
-take all that you can.
-
If not, there are open courses available, or relatively cheap ones.
-
Although you can't obtain the qualification accompanying the course, an
-increasing number of universities are putting entire modules online, enabling
-you to study all the material, sans support, for almost an entire degree.
-
-
-
-
-
-
-
-
-
Failing that, start a project in an area unfamiliar to you, thus forcing
-yourself to study in order to complete it. I learned a few subjects in this
-way.
-
Perhaps you won't reach great heights compared to other people, but you might
-for yourself, and that's what matters.
-
An important thing to grasp is that very few of these mega success stories
-you've encountered are actually true. Most are glossed over re-imaginings of
-the real events.
-
-
-
-
-
-
-
The Garage Myth and Era of mega successful University Dropouts
-
-
Much is made of dropping out of University and starting out alone with nothing
-but your own wits and a few resources.
-
Like they did in the olden days, when huge business were stated in garages.
-
So, how true is this, and can this *really be done today?
-
Lets examine the somewhat abbreviated reality, by skipping over the most
-famous examples (except for Facebook, you want that, watch the social Network).
-
-
-
-
-
-
-
-
-
Bill Gates came from a rich family and was able to obtain large amounts of
-money to begin his company. In addition he had been superbly educated prior to
-'dropping out'.
-
Steve Jobs didn't have such a wealthy background, and did drop out, but he did
-so because he didn't really need the degree certificate.
-
Some people simply don't, and he'd obtained what he needed from Reed College
-by the time he left.
-
-
-
-
-
-
-
-
-
Do this now and you'd possibly be unemployable, at least in Computing, but
-this was a long time ago, and he founded Apple with Steve Wozniak shortly
-after, with, as many overlook a lot of investment capital while still in his
-garage.
-
Google may have been based initially in a garage, but Larry Page and Sergey
-Brin, its founders were both graduates of Stanford University. This is one of
-the most expensive universities in America to enter, and getting there
-requires an equally expensive prior education.
-
In short neither Google founder were from poor backgrounds, they both had a
-serious advantage to begin with.
-
-
-
-
-
-
-
-
-
All of these examples were people who had well rounded educations. Not
-Polymaths, but decently educated to the point of being able to use the money
-they had well.
-
A true Polymath can succeed without much money.
-
Does this mean it's impossible to reach such heights in the world of computing
-without having such a prior advantage?
-
-
-
-
-
-
-
-
-
It means it's more difficult, certainly, but this is the case in every
-field. However technology is changing. No one person or corporation can
-predict what will be the next big thing.
-
This means the floor is open for someone to really experiment, bring
-together existing technologies in different ways and discover something new.
-
-
-
-
-
-
-
From Prince of Persia to Movie Motion Capture
-
-
Created in 1989 by Jordan Mechner, this game, produced by one boy with the
-assistance of his brother it would be fair to say changed the way games and
-movies were made forever.
-
It would also be fair to say it did so only because Jordan wanted smoother
-animations in his game, not because he set out deliberately to do so.
-
-
-
-
-
-
-
-
-
-
He filmed his brother performing all of these scenes, then transcribed them
-into his game.
-
Mechner had skills beyond programming in order to achieve this. Design,
-planning, film-making, drawing (painting?).
-
The game franchise he created is famous, he's succesful, but as he hasn't
-achieved the 'American Standard For Success (TM)' level of wealth, no-one
-calls him a polymath, although he certainly is.
-
-
-
-
-
-
-
-
-
His early work has now evolved into the motion capture technology we are
-familiar with today, and he is acknowledged as the person who began it.
-
I can't reproduce a chronology for it, but now rather than drawing over live
-actors, reference points are sometimes (but not always) placed on the actors
-bodies to be used by CGI modellers later.
-
-
-
-
-
-
-
-
-
Cats (2019) is the rare exception to this, and it went so badly the experiment
-is unlikely to repeated until technology appears that makes physical tags
-irrelevent.
-
-
-
-
-
-
-
Relating all this to Open Source
-
-
Modern workplaces tend to channel you into specialising on whatever is they
-happen to be paying you for.
-
They may feel justified for this, after all, it's their money, and you have
-agreed to work for them.
-
But long term, thinking like this hurts your prospects. Learning one thing in
-depth for a company will do you no good if you then leave that company and
-this skill isn't required elsewhere.
-
-
-
-
-
-
-
-
-
There have been three major economic crashes in the last two
-decades. Specialisation can be a risky strategy in such a financially unsteady
-job market
-
Keeping an Open Source portfolio active, either by having your
-own projects, or by participating in a variety of different types ones run by
-other people or groups (for preference ones outside of your 'comfort zone'),
-you can keep expanding your knowledge.
-
-
-
-
-
-
-
-
Obligatory XKCD
-
-
-
-
-
-
-
Copyright:
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Mirrored to avoid bandwidth stealing
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Licenced under Creative Commons Attribution-ShareAlike 4.0
-International by Dr Carey Pridgeon 2020
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diff --git a/20-21/Lectures/polymathy_and_open_source.org b/20-21/Lectures/polymathy_and_open_source.org
index 28617ee..50a19b2 100644
--- a/20-21/Lectures/polymathy_and_open_source.org
+++ b/20-21/Lectures/polymathy_and_open_source.org
@@ -110,11 +110,12 @@ file:img/imhotep.jpg
- As stated at the beginning of this lecture, it literally means learning a
number of different subjects (and being able to apply them).
- These can be aspects of computer science when you start out, there certainly
- are a lot of aspects to pick up, and right now you know so few, but true
- polymathy involves diverse fields.
+ are a lot of aspects to pick up, and right now you know a few, but true
+ polymathy involves diverse fields, not just the ones you study at University
+ or in any formal setting.
**
-- Also, Computing is a massive field, and we've only started learning all the
- areas it can be applied to.
+- Also, Computing is a massive field, and we, as a field, only started learning
+ all the areas it can be applied to.
- Pre 2000's, no-one really thought there would be any money to be made in
social media.
- Apps were developed, but only as additions to existing services