Houston voices

Houston research: Understanding the limit to our professional networks

Robin Dunbar, an anthropologist from England, has been studying and refining his theory on how large human networks can realistically get. Graphic byMiguel Tovar/University of Houston

You go to conferences; you network; you collaborate — all researchers and academics do. But do you need more than 150 contacts? Linkedin, Facebook, Twitter — all of these platforms open us up to the possibility of thousands of acquaintances, though fewer we would refer to as "friends."

Studying the primate brain

Robin Dunbar, an anthropologist from England, has been studying and refining his theory of the "Dunbar number" for 30 years. Dunbar became convinced that there was a ratio between brain sizes and group sizes through his studies of primates. "This ratio was mapped out using neuroimaging and observation of time spent on grooming, an important social behavior of primates. Dunbar concluded that the size, relative to the body, of the neocortex – the part of the brain associated with cognition and language – is linked to the size of a cohesive social group," wrote Christine Ro in a 2019 BBC.com Future article.

After the group reached approximately 150, it collapsed.

Your network

Is it true that humans based on their brain, and especially pre-frontal lobe size, are only able to connect in an intimate manner with around 150 other individuals? Defined as someone you would make plans to have a drink or coffee with if you bumped into them randomly on the street, Dunbar's claim is that it seems to be a consistent theme throughout history. Says the BBC: "This rule of 150 remains true for early hunter-gatherer societies as well as a surprising array of modern groupings: offices, communes, factories, residential campsites, military organizations, 11th Century English villages, even Christmas card lists."

The Dunbar number decreases by a "rule of three" where the next step down is the number 50 – those you consider "friends." Then about 15 in a closely knit circle, and four to six only in our familial or closest friend contacts.

Social media and COVID-19

"What determines these layers in real life, in the face-to-face world… is the frequency at which you see people," says Dunbar. "You're having to make a decision every day about how you invest what time you have available for social interaction, and that's limited." So, social media and COVID would seem to be game-changers for this theory.

Dunbar went on to study the process of "grooming" and light touch with astonishing results, which you can read about in the New Yorker. Basically, if a person has a face-to-face encounter with a friend, they are consequently able to withstand unpleasantness right afterwards (their hands stuck into a bucket of ice, for instance!) at a much higher rate.

"It makes sense that there's a finite number of friends most individuals can have," wrote Ro. "What's less clear is whether that capacity is being expanded, or contracted, by the ever-shifting ways people interact online …'It's extremely hard to cry on a virtual shoulder,' Dunbar deadpans."

And how has COVID changed Dunbar's theory? "While our culture has encouraged us to accumulate friends, both on- and offline, like points, the pandemic has laid bare the distinction between quantity and quality of connections," said a New York Times article. "There are those we've longed to see and those it's been a relief not to see."

The Big Idea

Many try to debunk Dunbar's number, by saying that primate and human brains differ and that the calculations are off. Robin Dunbar defends his theory thirty years after first proposing it in The Conversation.

The number of people you can just recognize according to Dunbar, is about 1,500, so you might want to keep that in mind if you are an extrovert and have an incredibly large network of collaborators – both online and offline.

University of Houston's central research department, the Division of Research, has about 100 members. But, your Linkedin network — check the number and see what it sits at. And if it's 600, ask yourself: do you really need that many contacts?

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This article originally appeared on the University of Houston's The Big Idea. Sarah Hill, the author of this piece, is the communications manager for the UH Division of Research.

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Building Houston

 
 

Here's your one-stop shop for innovation events in Houston this month. Photo via Getty Images

Houstonians are transitioning into a new summer month, and the city's business community is mixing in networking and conference events with family vacations and time off. Here's a rundown of what all to throw on your calendar for July when it comes to innovation-related events.

This article will be updated as more business and tech events are announced.

July 10 — Have a Nice Day Market at the Ion

Stop by for a one-of-a-kind vendor market - #HaveANiceDayHTX - taking place at the Ion, Houston's newest urban district and collaborative space that is designed to provide the city a place where entrepreneurial, corporate, and academic communities can come together. Free to attend and free parking onsite.

Have a Nice Day is a creative collective with a goal of celebrating BIPOC makers, creators, and causes.

The event is Sunday, July 10, 4 to 8 pm, at The Ion. Click here to register.

July 12 — One Houston Together Webinar Series

In the first installment of the Partnership's One Houston Together webinar series, we will discuss supplier diversity an often underutilized resource for business. What is it and why is it important? How can supplier diversity have long-term impact on your business, help strengthen your supply chain, and make a positive community impact?

The event is Tuesday, July 12, noon to 1 pm, online. Click here to register.

July 14 — Investor Speaker Series: Both Sides of the Coin

In the next installment of Greentown Labs' Investor Speaker Series, sit down with two Greentown founders and their investors as they talk about their experiences working together before, during, and after an equity investment was made in the company. Attendees will get a behind-the-scenes look at one of the most important relationships in a startup’s journey and what best practices both founders and investors can follow to keep things moving smoothly.

The event is Thursday, July 14, 1 to 2:30 pm, online. Click here to register.

July 15 — SBA Funding Fair

Mark Winchester, the Deputy District Director for the Houston District Office of the U.S. Small Business Administration, will give a short intro of the programs the mentors will discuss. There will be three government guaranteed loan mentors and two to three mentors co-mentoring with remote SBIR experts.

The event is Friday, July 15, 10:30 am to 1 pm, at The Cannon - West Houston. Click here to register.

July 16 — Bots and Bytes: Family STEAM Day

Join the Ion for a hands-on learning experience to learn about tech and robotics and gain insight into the professional skills and concepts needed to excel in a robotics or tech career. This event will be tailored for 9-14-year-olds for a fun STEM experience.

The event is Saturday, July 16, 10 am to 1 pm, at The Ion. Click here to register.

July 19 — How to Start a Startup

You have an idea...now what? Before you start looking for funding, it's important to make sure that your idea is both viable and valuable -- if it doesn't have a sound model and a market willing to pay for it, investors won't be interested anyway.

The event is Tuesday, July 19, 5:30 to 7:30 pm, at The Ion. Click here to register.

July 20 — Perfecting Your Pitch

Join the Ion for their series with DeckLaunch and Fresh Tech Solutionz as they discuss the importance and value of your pitch deck when reaching your target audience.

The event is Wednesday, July 20, 5:30 to 6:30 pm, at The Ion. Click here to register.

July 21 — Transition On Tap: Investor Readiness with Vinson & Elkins LLP

Attorneys from Greentown Labs’ Gigawatt Partner Vinson & Elkins LLP, a leading fund- and company-side advisor for clean energy financing, will present an overview of legal considerations in cleantech investing, geared especially toward early-stage companies and investors. The presentation will cover the types of investors and deals in the cleantech space and also provide background on negotiating valuation, term sheets, and preparing for diligence.

The event is Thursday, July 21, 5 to 7 pm, at Greentown Houston. Click here to register.

July 28 — The Cannon Community 2nd Annual Town Hall Event

Partner of The Cannon, Baker Tilly, has played an integral part in the success of Cannon member companies. Join the Cannon community for The Cannon's 5-year anniversary celebration!

The event is Thursday, July 28, 4 to 7 pm, at The Cannon - West Houston. Click here to register.

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