TPO 5 Lecture 1 Sociology

TPO 5 Lecture 1 Sociology

Narrator: Listen to part of a lecture in a sociology class.

Have you ever heard the one about alligators living in New York sewers? The
story goes like this: a family went on vacation in Florida and bought a couple of baby alligators as presents for their children, then returned from vacation to. New York, bringing the alligators home with them as pets. But the alligators would escape and find their way into the New York sewer system where they started reproducing, grew to huge sizes and now strike fear into sewer workers. Have you heard this story? Well, it isn’t true and it never happened. But despite that, the story has been around since the 1930s. Or how about the song ‘twinkle, twinkle little star’, you know, ‘twinkle, twinkle, little star, how I wonder what you are’. Well we’ve all heard this song. Where am I going with this? Well, both the song and the story are examples of memes. And that’s what we would talk about, the theory of memes.

A meme is defined as a piece of information copied from person to person. By
this definition, most of what you know, ideas, skills, stories, songs are memes.
All the words you know, all the scientific theories you’ve learned, the rules your
parents taught you to observe, all are memes that have been passed on from
person to person.

So what? You may say. Passing on ideas from one person to another is
nothing new. Well, the whole point of defining this familiar process as
transmission of memes is so that we can explore its analogy with the
transmission of genes. As you know, all living organisms pass on biological
information through the genes. What’s a gene? A gene is a piece of biological
information that gets copied or replicated, and the copy or replica is passed on
to the new generation. So genes are defined as replicators.
Genes are replicators that pass on information about properties and
characteristics of organisms. By analogy, memes also get replicated and in the
process pass on culture information from person to person, generation to
generation. So memes are also replicators. To be a successful replicator, there
are three key characteristics: longevity, fecundity and fidelity. Let’s take a
closer look.

First, longevity. A replicator must exist long enough to be able to get copied,
and transfer its information. Clearly, the longer a replicator survives, the better
its chances of getting its message copied and passed on. So longevity is a key
characteristic of a replicator. If you take the alligator story, it can exist for a long
time in individual memory, let’s say, my memory. I can tell you the story now or
ten years from now, the same with the twinkle, twinkle song. So these memes
have longevity because they are memorable for one reason or another.
Next, fecundity. Fecundity is the ability to reproduce in large numbers. For
example, the common housefly reproduces by laying several thousand eggs,
so each fly gene gets copied thousands of times. Memes, well, they can be
reproduced in large numbers as well. How many times have you sung the
‘twinkle, twinkle song’ to someone? Each time you replicated that song, and
maybe passed it along to someone who did not know it yet, a small child

And finally, fidelity. Fidelity means accuracy of the copying process. We know
fidelity is an essential principle of genetic transmission. If a copy of a gene is a
bit different from the original, that’s called a genetic mutation. And mutations
are usually bad news. An organism often can not survive with a mutated gene.
And so a gene usually can not be passed on, unless it’s an exact copy. For
memes however, fidelity is not always so important. For example, if you tell
someone the alligator story I told you today, it probably won’t be word for word
exactly as I said it. Still, it will be basically the same story, and the person who
hears the story will be able to pass it along. Other memes are replicated with
higher fidelity though, like the twinkle, twinkle song. It had the exact same
words 20 years ago as it does now. Well, that’s because we see songs as
something that has to be performed accurately each time. If you change a
word, the others will usually bring you in line. They’ll say, ‘that’s not how you
sing it’, right?

So, you can see how looking at pieces of cultural information as replicators, as
memes, and analyzing them in terms of longevity, fecundity and fidelity, we
can gain some inside about how they spread, persist or change.

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