-
I was recently traveling
in the Highlands of New Guinea,
-
and I was talking with a man
who had three wives.
-
And I asked him,
-
"How many wives would you like to have?"
-
And there was this long pause,
-
and I thought to myself,
-
"Is he going to say five?
-
Is going to say 10?
-
Is he going to say 25?"
-
And he leaned towards me
-
and he whispered, "None."
-
(Laughter)
-
86 percent of human societies
permit a man to have several wives:
-
polygeny.
-
But in the vast majority
of these cultures,
-
only about five or 10 percent of men
actually do have several wives.
-
Having several partners
can be a toothache.
-
In fact, co-wives can
fight with each other,
-
sometimes they can even poison
each others' children.
-
And you've got to have a lot of cows,
-
a lot of goats,
-
a lot of money,
-
a lot of land,
-
in order to build a harem.
-
We are a pair-bonding species.
-
97 percent of mammals do not
pair up to rear their young;
-
human beings do.
-
I'm not suggesting that we're not --
-
that we're necessarily sexually
faithful to our partners.
-
I've looked at adultery in 42 cultures,
-
I [actually] understand
some the genetics of it,
-
and some of the brain circuitry of it.
-
It's very common around the world,
-
but we are built to love.
-
How is technology changing love?
-
I'm going to say almost not at all.
-
I study the brain.
-
I and my colleagues have put
over 100 people into a brain scanner --
-
people who had just
fallen happily in love,
-
people who had just
been rejected in love
-
and people who are in love long-term.
-
And it is possible
to remain "in love" long-term.
-
And I've long ago maintained
-
that we've evolved three distinctly
different brain systems
-
for mating and reproduction:
-
sex drive,
-
feelings of intense romantic love
-
and feelings of deep cosmic
attachment to a long-term partner.
-
And together,
-
these three brain systems --
-
with many other parts of the brain --
-
orchestrate our sexual, our romantic
and our family lives.
-
But they lie way below the cortex,
-
way below the limbic system
where we feel our emotions --
-
generate our emotions.
-
They lie in the most primitive
parts of the brain linked with energy,
-
focus,
-
craving,
-
motivation,
-
wanting
-
and drive.
-
In this case,
-
the drive to win life's greatest prize:
-
a mating partner.
-
They evolved over 4.4 million years ago
among our first ancestors,
-
and they're not going to change
-
if you sweep left of right on Tinder.
-
(Laughter)
-
(Applause)
-
There's no question that technology
is changing the way we court:
-
emailing, texting,
-
emojis to express your emotions,
-
sexting,
-
"liking" a photograph,
-
selfies,
-
we're seeing new rules
and taboos for how to court.
-
But, you know --
-
is this actually
dramatically changing love?
-
What about the late 1940s,
-
when the automobile became very popular
-
and we suddenly had rolling bedrooms?
-
(Laughter)
-
How about the introduction
of the birth control pill?
-
Unchained from the great
threat of pregnancy and social ruin,
-
women could finally express
their primitive and primal sexuality.
-
Even dating sites are not changing love.
-
I'm chief scientific advisor to Match.com,
-
I've been it for 11 years.
-
I keep telling them --
-
and they agree with me --
-
that these are not dating sites,
-
they are introducing sites.
-
When you sit down in a bar,
-
in a coffee house,
-
on a park bench,
-
your ancient brain snaps into action
like a sleeping cat awakened,
-
and you smile,
-
and laugh,
-
and listen
-
and parade the way our ancestors
did 100,000 years ago.
-
(Laughter)
-
We can give you various people --
-
all the dating sites can --
-
but the only real algorithm
is your own human brain.
-
Technology is not going to change that.
-
Technology is also not going to change
who you choose to love.
-
I study the biology of personality,
-
and I've come to believe
-
that we've evolved four very broad
styles of thinking and behaving,
-
linked with the dopamine,
-
serotonin,
-
testosterone and estrogen systems.
-
So I created a questionnaire
directly from brain science
-
to measure the degree
-
to which you express the traits --
-
the constellation of traits --
-
linked with each
of these four brain systems.
-
I then put that questionnaire
on various match dating sites
-
in 40 countries,
-
14 million or more people
have now taken the questionnaire,
-
and I've been able to watch
who's naturally drawn to whom.
-
And as it turns out,
-
those who were very expressive
of the dopamine system --
-
they tend to be curious, creative,
spontaneous, energetic,
-
I would imagine there's an awful lot
of people like that in this room --
-
they're drawn to people like themselves.
-
Curious creative people need
people like themselves.
-
People who are very expressive
of the seratonin system
-
tend to be traditional, conventional,
they follow the rules,
-
they respect authority,
-
they tend to be religious --
-
religiosity is in the serotonin system --
-
and traditional people
go for traditional people.
-
In that way,
-
similarity attracts.
-
In the other two cases,
-
opposites attract.
-
People very expressive
of the testosterone system
-
tend to be analytical,
logical, direct, decisive,
-
and they go for their opposite:
-
they go for somebody who's high estrogen,
-
somebody who's got
very good verbal skills,
-
and people skills,
-
who's very intuitive
-
and who's very nurturing
and emotionally expressive.
-
We have natural patterns of mate choice.
-
Modern technology is not going
to change who we choose to love.
-
But technology is producing
one modern trend
-
that I find particularly important.
-
It's associated with the concept
of paradox of choice.
-
Millions of years,
-
we lived in little hunting
and gathering groups.
-
You didn't have the opportunity to choose
between 1,000 people on a dating site.
-
In fact, I've been studying this recently
-
and I actually think there's some
sort of sweet spot in the brain,
-
and I don't know what it is,
-
but there's apparently,
-
from reading a lot of the data --
-
we can embrace about
five to nine alternatives,
-
and after that,
-
you get into what academics
call "cognitive overload,"
-
and you don't choose any.
-
So I've come to think that due
to this cognitive overload,
-
we're ushering in a new form of courtship
-
that I call, "slow love."
-
I arrived at this during
my work with Match.com.
-
Every year for the last six years,
-
we've done a study called
"Singles in America."
-
We don't poll the Match population,
-
we poll the American population.
-
We use 5,000 plus people,
-
a representative sample of Americans
based on the US census.
-
We've got data now on over 30,000 people
-
and every single year,
-
I see some of the same patterns.
-
Every single year when I ask the question,
-
over 50 percent of people
who have had a one-night stand --
-
not necessarily last year
but in their lives --
-
50 percent have had
a friends with benefits
-
during the course of their lives,
-
and over 50 percent have lived
with a person long-term
-
before marrying.
-
Americans think that this is reckless.
-
I have doubted that for a long time;
-
the patterns are too strong,
-
there's got to be some
Darwinian explanation --
-
not that many people are crazy --
-
and so I stumbled then on a statistic
that really came home to me.
-
It was a very interesting academic article
-
in which I found that 67 percent
of singles in America today
-
who are living long-term with somebody,
-
have not yet married because
they are terrified of divorce.
-
They're terrified of the social,
legal, emotional,
-
economic consequences of divorce.
-
So I came to realize that I don't think
that this is recklessness,
-
I think that it's caution.
-
Today's singles want to know every
single thing about a partner
-
before they wed.
-
You learn a lot between the sheets:
-
not only about how somebody makes love,
-
but whether they're kind,
-
whether they can listen,
-
and at my age,
-
whether they've got a sense of humor.
-
(Laughter)
-
And in an age where we
have too many choices,
-
and we have very little fear
of pregnancy and disease,
-
and we've got no feeling of shame
for sex before marriage,
-
I think people are taking
their time to love.
-
And actually what's happening is --
-
what we're seeing is a real expansion
of the precommitment stage
-
before you tie the knot.
-
Where marriage used to be
the beginning of a relationship,
-
now it's the finale.
-
But the human brain --
-
(Laughter)
-
The human brain always triumphs,
-
and indeed in the United States today,
-
86 percent of Americans
will marry by age 49,
-
and even in cultures around the world
where they're not marrying as often,
-
they are settling down eventually
with a long-term partner.
-
So it began to occur to me --
-
during this long extension
of the precommitment stage,
-
if you can get rid of bad
relationships before you marry,
-
maybe we're going to see
more happy marriages.
-
So I did a study of 1100
married people in America --
-
not on Match.com, of course --
-
and I asked them a lot of questions,
-
but one of the questions was,
-
"Would you re-marry the person
you're currently married to?"
-
And 81 percent said, "yes."
-
In fact,
-
the greatest change in modern
romance and family life
-
is not technology --
-
it's not even slow love --
-
it's actually women piling into the job
market in cultures around the world.
-
For millions of years,
-
our ancestors lived in little
hunting and gathering groups.
-
Women commuted to work
to gather their fruits and vegetables.
-
They came home with 60 to 80
percent of the evening meal.
-
The double-income family was the rule.
-
And women were regarded as just
as economically,
-
socially
-
and sexually powerful as men.
-
Then the environment changed
some 10,000 years ago,
-
we began to settle down on the farm,
-
and both men and women,
-
they became obliged, really
-
to marry the right person,
-
from the right background,
-
from the right religion
-
and from the right kin and social
and political connections.
-
Men's jobs became more important:
-
they have to move the rocks,
fell the trees, plow the land.
-
They brought the produce
off to local markets
-
and came home with
the equivalent of money.
-
And along with this,
-
we see a rise of a host of beliefs.
-
The belief of virginity at marriage,
-
arragned marriages --
-
strictly arranged marriages --
-
the belief that the man
is the head of the household,
-
that the wife's place is in the home,
-
and most important:
-
honor thy husband,
-
and 'til death do us part.
-
These are gone.
-
They are going,
-
and in many places,
-
they are gone.
-
We are right now in a marriage revolution.
-
We are shedding 10,000 years
of our farming tradition
-
and moving forward towards egalitarian
relationships between the sexes,
-
something that I regard as highly
compatible with the ancient human spirit.
-
I'm not a Pollyanna;
-
there's a great deal to cry about.
-
I studied divorce in 80 cultures,
-
I studied, as I say, adultery in many --
-
there's a whole pile of problems.
-
As William Butler Yates,
-
the poet once said,
-
"Love is the crooked thing."
-
I would add,
-
"Nobody gets out alive."
-
(Laughter)
-
We all have problems.
-
But in fact,
-
I think the poet Randall Jerrell
really sums it up best.
-
He said, "The dark, uneasy
world of family life --
-
where the greatest can fail
and the humblest succeed."
-
But I will leave you with this:
-
love and attachment will prevail,
-
technology cannot change it.
-
And I will conclude by saying
-
that any understanding
of human relationships
-
must take into account
-
one the most powerful
determinants of human behavior:
-
the unquenchable,
-
adaptable,
-
and primordial human drive to love.
-
Thank you.
-
(Applause)
-
Kelly Stoetzel: Thank you
so much for that, Helen.
-
As you know, there's
another speaker here with us
-
that works in your same field.
-
She comes at it
from a different perspective.
-
Esther Perel is a psychotherapist
who works with couples.
-
You study data,
-
Esther studies the stories
the couples tell her
-
when they come to her for help.
-
Let's have her join us on the stage.
-
Esther?
-
(Applause)
-
So Esther,
-
when you were watching Helen's talk,
-
was there any part of it
that sort of resonated with you
-
through the lens of your own work
-
that you'd like the comment on?
-
EP: So it's interesting because
on the one hand,
-
the need for love
is ubiquitous and universal,
-
but the way we love --
-
the meaning we make out of it --
-
the rules that govern our relationships
-
I think are changing fundamentally.
-
We come from a model
-
that until now was primarily regulated
around duty and obligation,
-
and the needs for the collective,
-
and loyalty.
-
And we have shifted it
to a model of free choice
-
and individual rights,
-
and self-fulfillment and happiness.
-
And so that was the first thing I thought,
-
is that the need doesn't change,
-
but the context and the way we regulate
these relationships changes a lot.
-
On the paradox of choice --
-
so you know,
-
on the one hand we relish the novelty
-
and the playfulness I think,
-
to be able to have so many options.
-
And at the same time,
-
as you talk about this cognitive overload,
-
I see many, many people who ...
-
who dread the uncertainty and self-doubt
-
that comes with this [matter] of choice,
-
creating a case of "FOMO"
-
and then leading us --
-
FOMO, fear of missed opportunity,
or fear of missing out --
-
it's like, "How do I know
I have found the one --
-
the right one?"
-
So we've created what I call
this thing of "stable ambiguity."
-
Stable ambiguity is when
you are too afraid to be alone,
-
but also not really willing
to engage in intimacy-building.
-
It's a set of tactics that kind of prolong
the uncertainty of a relationship
-
but also the uncertainty of the breakup.
-
So here on the Internet
you have three major ones.
-
One is icing and simmering,
-
which are great stalling tactics
-
that offer a kind of holding pattern
-
that emphasizes the undefined
nature of a relationship,
-
but at the same time gives you
enough of a comforting consistency
-
and enough freedom
of the undefined boundaries.
-
(Laugther)
-
Yeah?
-
And then comes ghosting.
-
And ghosting is basically,
-
you know, you disappear from
this [matter] of texts on the spot,
-
and you don't have to deal with the pain
that you inflict on another
-
because you're making it
invisible even to yourself.
-
(Laughter)
-
Yeah?
-
So I was thinking --
-
these words came up for me
as I was listening to you --
-
like how a vocabulary
creates also a reality,
-
and at the same time,
-
that's my question to you.
-
Do you think when the context changes,
-
it still means that the nature
of love remains the same?
-
You study the brain and I study
people's relationships and stories,
-
so I think it's everything you say, plus.
-
But I don't always know
-
the degree to which a changing context --
-
does it at some point begin to change --
-
if the meaning changes,
-
does it change the need,
-
or is the need clear
of the entire context?
-
HF: Wow.
-
Well --
-
(Laughter)
-
(Applause)
-
Well, I've got three points here, right?
-
Well first of all to your first one:
-
there's no question that we've changed,
-
that we now want a personal love
-
and that for thousands of years
we had to marry the right person
-
from the right background
and the right connection.
-
And in fact,
-
in my studies of 5,000 people every year,
-
I ask them, "What are you looking for?"
-
And every single year
over 97 percent say --
-
EP: And this grows --
-
HF: Well, no.
-
The basic thing is
over 97 percent of people
-
want somebody that respects them,
-
somebody that they
can trust and confide in,
-
somebody who makes them laugh,
-
somebody who makes enough time for them
-
and somebody who they find
physically attractive.
-
That never changes.
-
And there's certainly --
-
you know there's two parts --
-
EP: But you know how I call that?
-
It's like, that's not
what people used to say --
-
HF: That's exactly right.
-
EP: They wanted somebody
with whom they have companionship,
-
economic support, children --
-
we went from a production economy
to a service economy --
-
(Laugther)
-
We did it in the larger culture
and we're doing it in marriage.
-
HF: There's no question about it,
-
but it's interesting,
-
millennials actually want
to be very good parents,
-
whereas the generation above them
wants to have a very fine marriage
-
but is not as focused
on being a good parent.
-
You see all of these nuances.
-
There's two basic parts of personality:
-
there's your culture --
-
everything you grew up to do
and believe and say --
-
and there's your temperament.
-
And basically what I've been
talking about is your temperament.
-
And that temperament is certainly
going to change with changing times
-
and changing beliefs.
-
And in terms of the paradox of choice,
-
there's no question about it,
-
that this is a pickle.
-
There were millions of years
-
where you found that sweet boy
at the other side of the water hole
-
and you went for it.
-
EP: Yes, but --
-
HF: I do want to say one more thing.
-
The bottom line is in hunting
and gathering societies,
-
they tended to have two or three
partners during the course of their lives.
-
I mean they weren't square.
-
And I'm not suggesting that we do,
-
but bottom line is we've
always had alternatives.
-
Mankind is always --
-
in fact the brain is well-built
-
to what we call equilibrate,
-
to try and decide:
-
do I come, do I stay?
-
Do I go, do I stay?
-
What are the opportunities here?
-
How do I handle this there?
-
And so I think we're seeing
another play out of that now.
-
KS: Well, thank you both so much.
-
[I think you're going to have]
a million dinner partners for tonight.
-
(Applause)
-
Thank you, thank you.
Brian Greene
The subtitle starting at 16:53 was corrected on 11/21/16.
"right kin connection" was changed to "right kin connection"