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Walking is a state of mind – it can teach you so much about where you are

Walking roots us in new places. It also unlocks memories of those we’ve moved away from.

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Walking connects you to your city. Cerqueira | Unsplash, FAL

During lockdown in 2020, governments across the world encouraged people to take short walks in their neighbourhoods. Even before COVID hit though, amid the renewal of city centres and environmental and public health concerns, walking was promoted in many places as a form of active travel, to replace car journeys.

This resurgence in urban walking has been a long time coming. Our first baby steps might still be celebrated. But since the explosion of car use in the 1950s, people in Europe and North America have walked less and less.

UK transport statistics show an annual increase of about 4.8 billion passenger motor vehicle miles (from car and taxi use) in the four decades to 1990. The last decade of the 20th century saw that growth slow. But until recently, our collective motor use just kept climbing.

The pandemic changed that. Passenger motor vehicle miles decreased by over 68 billion. And surveys suggest that 38% of the people who took up walking as a new pursuit aim to stick with it. My research shows walking is more than an activity: it both ties you to where you are and unlocks your memories.

Walking through Caerleon in the 1960s and 1970s, a film about Aled Singleton’s project by Tree Top Films.

How walking connects you to your city

In the 2000s, as part of their Rescue Geography project, geographers Paul Evans and Phil Jones facilitated group walks in the Eastside district of Birmingham, Britain’s third largest city. The idea was to “rescue” local people’s understandings of an area before it is redeveloped. They accompanied older former residents on foot through streets they’d known as children, before these inner-city neighbourhoods were demolished in the 1950s and 1960s and they had relocated to suburbia – a shift which saw the car become their only option for everyday transport.

Similarly, in my doctoral research I used walking to understand how a neighbourhood of Caerleon in south Wales had expanded in the 1960s and 1970s. I did many one-to-one interviews with people not sat down in a room, but strolling through streets they knew well. It became a way of exploring how spaces act as thresholds to memories and to levels of the unconscious, which may not otherwise reveal themselves.

People showed me the streets where they had lived at points through their lives. One person took me on the route he took to school during the 1970s, as a teenager. Passing certain shops prompted stories of how he’d walk to pick up a block of cheese or rashers of bacon for his mother. He told me how his family’s shopping habits had changed over time. After getting a freezer in the late 1970s, they started driving to the out-of-town supermarket.

I met another family who had lived on the same street for three generations. The grandfather was in his 70s, his daughter middle-aged, and his granddaughter 11. His daughter described how the streets she’d known as a child in the 1980s were now so much busier, and more dangerous, because of the cars. She described her daughter’s world as being “narrower”, as a result.

Two people in jeans walk past a boarded up B&B on a Scottish street.
Research shows how walking down streets you once knew well can trigger memories you might not otherwise have recalled. Stephen Bridger | Shutterstock

How walking unlocks our memories

Walking changes the way we tell our life stories. Taking a street we once took often unlocks things: we might not struggle as much to remember specific dates. We find a freedom of sorts to go deeper into our memories.

This chimes with the non-representational theories championed by geographer Nigel Thrift. Broadly this approach highlights how physically being in a specific place can help us retrieve feelings or knowledge that are deep within the subconsious.

In her research with migrant communities in the UK, sociologist Maggie O'Neill has used walking and participatory theatre as what she calls biographical methods for exploring ideas of borders, risk and belonging.

In a similar way, I collaborated on two public group walks with a dancer, Marega Palser. I planned lines on the ground which linked environments such as houses, shops, schools, busy roads, paths, and green spaces. And Palser turned material I’d gathered from my walking interviews into short pieces of street theatre that we would share, as a collective.

Palser’s interpretations were deliberately disarming and playful, and they triggered unexpected responses. In one case she used toy vehicles to recall a car crash from the late 1960s.

A group of walkers take part in an outdoor performance.
Dancer Marega Palser intervenes on a group walk in Caerleon. Author provided, Author provided

One person recalled how a relative in the 1960s had accidentally pierced the gas pipe (a very new technology at the time) in their council house kitchen. While the anecdote had initially seemed unimportant, we learned that the incident had happened on Christmas Eve and that the council had come straight away to sort out the problem.

Minds were cast back to a time when technologies now common were only just emerging. Many more attendees came forward and shared stories from their lives in the mid-1950s to mid-1970s. They relayed how central heating had arrived with new-build houses on suburban housing estates and how supermarkets had offered more choice.

As with Evans and Jones’ Rescue Geography project, I found that it was through touching and feeling these geographical spaces that people were able to connect with their memories. Walking, one person in middle-age told me, “takes you back yourself, on a journey, to the places you’ve lived”. They spoke about the “packed connections” these places hold, of being taken back to childhood and thinking about people who have spent their entire lives living in one place.

Sun setting with lens flare and warm colours, over a traditional British neighbourhood.
Traipsing through a neighbourhood you once knew well brings back memories you aren’t aware you had. K303 | Shutterstock

Walking is about slowing life down and thinking about the local. It enables conversations. It develops empathy.. More than a simple physical activity, it is a way of thinking and a state of mind. From online resources for composing walks and apps for tracking them to the online walking communities of people who cover each street in their city – the every-single-streeters – there are plenty of ideas for you to get walking too.

Dr Aled Mark Singleton receives funding from the Economic and Social Research Council, grant reference ES/W007568/1.

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Lab, crab and robotic rehab

I was in Berkeley a couple of months back, helping TechCrunch get its proverbial ducks in a row before our first big climate event (coming in a few weeks,…

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I got previews of a number of projects I hope to share with you in the newsletter soon, but one that really caught my eye was FogROS, which was just announced as part of the latest ROS (robot operating system) rollout. Beyond a punny name that is simultaneously a reference to the cloud element (fog/cloud — not to mention the fact that the new department has killer views of San Francisco and frequent visitor, Karl) and problematic French cuisine, there’s some really compelling potential here.

I’ve been thinking about the potential impact of cloud-based processing quite a bit the last several years, independent of my writing about robots. Specifically, a number of companies (Microsoft, Amazon, Google) have been betting big on cloud gaming. What do you do when you’ve seemingly pushed a piece of hardware to its limit? If you’ve got low enough latency, you can harness remote servers to do the heavy lifting. It’s something that’s been tried for at least a decade, to varying effect.

Image Credits: ROS

Latency is, of course, a major factor in gaming, where being off by a millisecond can dramatically impact the experience. I’m not fully convinced that experience is where it ought to be quite yet, but it does seem the tech has graduated to a point where off-board processing makes practical sense for robotics. You can currently play a console game on a smartphone with one of those services, so surely we can produce smaller, lighter-weight and lower-cost robots that rely on a remote server to complete resource-intensive tasks like SLAM processing.

The initial application will focus on AWS, with plans to reach additional services like Google Cloud and Microsoft Azure. Watch this space. There are many reasons to be excited. Honestly, there’s a lot to be excited about in robotics generally right now. This was one of the more fun weeks in recent memory.

V Bionic's exoskeleton glove shown without its covering.

Image Credits: V Bionic

Let’s start with the ExoHeal robotic rehabilitation gloves. The device, created by Saudi Arabian V Bionic, nabbed this year’s Microsoft Imagine Cup. The early-stage team is part of a proud tradition of healthcare exoskeletons. In this case, it’s an attempt to rehab the hand following muscle and tendon injuries. Team leader Zain Samdani told TechCrunch:

Flexor linkage-driven movement gives us the flexibility to individually actuate different parts of each finger (phalanges) whilst keeping the device portable. We’re currently developing our production-ready prototype that utilizes a modular design to fit the hand sizes of different patients.

Image Credits: Walmart

This is the third week in a row Walmart gets a mention here. First it was funding for GreyOrange, which it partnered with in Canada. Last week we noted a big expansion of the retail giant’s deal with warehouse automation firm, Symbotic. Now it’s another big expansion of an existing deal — this time dealing with the company’s delivery ambitions.

Like Walmart’s work with robotics, drone delivery success has been…spotty, at best. Still, it’s apparently ready to put its money where its mouth is on this one, with a deal that brings DroneUp delivery to 34 sites across six U.S. states. Quoting myself here:

The retailer announced an investment in the 6-year-old startup late last year, following trial deliveries of COVID-19 testing kits. Early trials were conducted in Bentonville, Arkansas. This year, Arizona, Florida, Texas and DroneUp’s native Virginia are being added to the list. Once online, customers will be able to choose from tens of thousands of products, from Tylenol to hot dog buns, between the hours of 8 a.m. and 8 p.m.

Freigegeben für die Berichterstattung über das Unternehemn Wingcopter bis zum 25.01.2026. Mit Bitte um Urhebervermerk v.l.: Jonathan Hesselbarth, Tom Plümmer und Ansgar Kadura von Wingcopter GmbH. Image Credits: © Jonas Wresch / KfW

There are still more question marks around this stuff than anything, and I’ve long contended that drone delivery makes the most sense in remote and otherwise hard to reach areas. That’s why something like this Wingcopter deal is interesting. Over the next five years, the company plans to bring 12,000 of its fixed-wing UAVs to 49 countries across Sub-Saharan Africa. It will cover spots that have traditionally struggled with infrastructural issues that have made it difficult to deliver food and medical supplies through more traditional means.

“With the looming food crisis on the African continent triggered by the war in Ukraine, we see great potential and strong social impact that drone-delivery networks can bring to people in all the countries in Sub-Saharan Africa by getting food to where it is needed most,” CEO Tom Plümmer told TechCrunch. “Especially in remote areas with weak infrastructure and those areas that are additionally affected by droughts and other plagues, Wingcopter’s delivery drones will build an air bridge and provide food from the sky on a winch to exactly where it is needed.”

Legitimately exciting stuff, that.

Image Credits: Dyson

In more cautiously optimistic news, Dyson dropped some interesting news this week, announcing that it has been (and will continue) pumping a lot of money into robotic research. Part of the rollout includes refitting an aircraft hangar at Hullavington Airfield, a former RAF station in Chippenham, Wiltshire, England that the company purchased back in 2016.

Some numbers from the company:

Dyson is halfway through the largest engineering recruitment drive in its history. Two thousand people have joined the tech company this year, of which 50% are engineers, scientists, and coders. Dyson is supercharging its robotics ambitions, recruiting 250 robotics engineers across disciplines including computer vision, machine learning, sensors and mechatronics, and expects to hire 700 more in the robotics field over the next five years. The master plan: to create the UK’s largest, most advanced, robotics center at Hullavington Airfield and to bring the technology into our homes by the end of the decade.

The primary project highlighted is a robot arm with a number of attachments, including a vacuum and a human-like robot hand, which are designed to perform various household tasks. Dyson has some experience building robots, primarily through its vacuums, which rely on things like computer vision to autonomously navigate. Still, I say “cautiously optimistic,” because I’ve seen plenty of non-robotics companies showcase the technology as more of a vanity project. But I’m more than happy to have Dyson change my mind.

Image Credits: Hyundai

Hyundai, of course, has been quite aggressive in its own robotics dreams, including its 2020 acquisition of Boston Dynamics. The carmaker this week announced that part of its massive new $10 billion investment plans will include robotics, with a focus of actually bringing some of its far-out concepts to market.

Another week, another big round for logistics/fulfillment robotics, as Polish firm Nomagic raised $22 million to expand its offerings. The company’s primary offering is a pick and place arm that can move and sort small goods. Khosla Ventures and Almaz Capital led the round, which also featured European Investment Bank, Hoxton Ventures, Capnamic Ventures, DN Capital and Manta Ray.

Amazon Astro with periscope camera

The periscope camera pops out and extends telescopically, enabling Astro to look over obstacles and on counter tops. A very elegant design choice. Image Credits: Haje Kamps for TechCrunch

We finally got around to reviewing Amazon’s limited-edition home robot, Astro, and Haje’s feelings were…mixed:

It’s been fun to have Astro wandering about my apartment for a few days, and most of the time I seemed to use it as a roving boom box that also has Alexa capabilities. That’s cute, and all, but $1,000 would buy Alexa devices for every thinkable surface in my room and leave me with enough cash left over to cover the house in cameras. I simply continue to struggle with why Astro makes sense. But then, that’s true for any product that is trying to carve out a brand new product category.

A tiny robot crab scuttles across the frame. Image Credits: Northwestern University

And finally, a tiny robot crab from Northwestern University. The little guy can be controlled remotely using lasers and is small enough to sit on the side of a penny. “Our technology enables a variety of controlled motion modalities and can walk with an average speed of half its body length per second,” says lead researcher, Yonggang Huang. “This is very challenging to achieve at such small scales for terrestrial robots.”

Image Credits: Bryce Durbin/TechCrunch

Scuttle, don’t walk to subscribe to Actuator.

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Asymptomatic SARS-CoV-2 infections responsible for spreading of COVID-19 less than symptomatic infections

Based on studies published through July 2021, most SARS-CoV-2 infections were not persistently asymptomatic, and asymptomatic infections were less infectious…

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Based on studies published through July 2021, most SARS-CoV-2 infections were not persistently asymptomatic, and asymptomatic infections were less infectious than symptomatic infections. These are the conclusions of an update of a systematic review and meta-analysis publishing May 26th in the open access journal PLOS Medicine by Diana Buitrago-Garcia of the University of Bern, Switzerland, and colleagues.

Credit: Monstera, Pexels (CC0, https://creativecommons.org/publicdomain/zero/1.0/)

Based on studies published through July 2021, most SARS-CoV-2 infections were not persistently asymptomatic, and asymptomatic infections were less infectious than symptomatic infections. These are the conclusions of an update of a systematic review and meta-analysis publishing May 26th in the open access journal PLOS Medicine by Diana Buitrago-Garcia of the University of Bern, Switzerland, and colleagues.

Debate about the level and risks of asymptomatic SARS-CoV-2 infections continues, with much ongoing research. Studies that assess people at just one time point can overestimate the proportion of true asymptomatic infections because those who go on to later develop symptoms are incorrectly classified as asymptomatic rather than presymptomatic. However, other studies can underestimate asymptomatic infections with research designs that are more likely to include symptomatic participants.

The new paper was an update of a living (as in, regularly updated) systematic review first published in April 2020, which includes additional, more recent studies through July 2021. 130 studies were included, with data on 28,426 people with SARS-CoV-2 across 42 countries, including 11,923 people defined as having asymptomatic infection. Because of extreme variability between included studies, the meta-analysis did not calculate a single estimate for asymptomatic infection rate, but it did estimate the inter-quartile range to be that 14–50% of infections were asymptomatic. Additionally, the researchers found that the secondary attack rate—a measure of the risk of transmission of SARS-CoV-2 — was about two-thirds lower from people without symptoms than from those with symptoms (risk ratio 0.32, 95%CI 0.16–0.64).

“If both the proportion and transmissibility of asymptomatic infection are relatively low, people with asymptomatic SARS-CoV-2 infection should account for a smaller proportion of overall transmission than presymptomatic individuals,” the authors say, while also pointing out that “when SARS-CoV-2 community transmission levels are high, physical distancing measures and mask-wearing need to be sustained to prevent transmission from close contact with people with asymptomatic and presymptomatic infection.”

Coauthor Nicola Low adds, “The true proportion of asymptomatic SARS-CoV-2 infection is still not known, and it would be misleading to rely on a single number because the 130 studies that we reviewed were so different. People with truly asymptomatic infection are, however, less infectious than those with symptomatic infection.”

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In your coverage, please use this URL to provide access to the freely available paper in PLOS Medicine:

http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1003987  

Citation: Buitrago-Garcia D, Ipekci AM, Heron L, Imeri H, Araujo-Chaveron L, Arevalo-Rodriguez I, et al. (2022) Occurrence and transmission potential of asymptomatic and presymptomatic SARS-CoV-2 infections: Update of a living systematic review and meta-analysis. PLoS Med 19(5): e1003987. https://doi.org/10.1371/journal.pmed.1003987

Author Countries: Switzerland, France, Spain, Argentina, United Kingdom, Sweden, United States, Colombia

Funding: This study was funded by the Swiss National Science Foundation http://www.snf.ch/en (NL: 320030_176233); the European Union Horizon 2020 research and innovation programme https://ec.europa.eu/programmes/horizon2020/en (NL: 101003688); the Swiss government excellence scholarship https://www.sbfi.admin.ch/sbfi/en/home/education/scholarships-and-grants/swiss-government-excellence-scholarships.html (DBG: 2019.0774) and the Swiss School of Public Health Global P3HS stipend https://ssphplus.ch/en/ (DBG). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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Harsher COVID-19 restrictions associated with faster “pandemic fatigue”

Between November 2020 and May 2021, adherence to COVID-19 pandemic restrictions decreased in Italy, with the fastest decreases taking place during times…

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Between November 2020 and May 2021, adherence to COVID-19 pandemic restrictions decreased in Italy, with the fastest decreases taking place during times of the most stringent restrictions, according to a new study publishing May 26th in the open-access journal PLOS Digital Health by Laetitia Gauvin of ISI Foundation, Italy, and colleagues.

Credit: Ben Garratt, Unsplash (CC0, https://creativecommons.org/publicdomain/zero/1.0/)

Between November 2020 and May 2021, adherence to COVID-19 pandemic restrictions decreased in Italy, with the fastest decreases taking place during times of the most stringent restrictions, according to a new study publishing May 26th in the open-access journal PLOS Digital Health by Laetitia Gauvin of ISI Foundation, Italy, and colleagues.

Pandemic fatigue, the decreased motivation to adhere to social distancing measures and adopt health-protective behaviors, represents a significant concern for policymakers and health officials. In the time period spanning November 2020 to May 2021 in Italy, tiered restrictions were adopted to mitigate the spread of COVID-19, with regions declared red, orange, yellow or white depending on their health data. Restrictions ranged from a nighttime curfew in the yellow tier to general stay-at-home mandates in the red tier.

In the new study, the researchers used large-scale mobility data from Facebook and Google captured in all 20 Italian provinces in 2020 and 2021 to analyze the timing of pandemic fatigue. Facebook reports the change in a user’s number of movements over time, while Google data estimates the change in time spent at home.

People’s relative change in movements increased an average of 0.08% per day and their time spent outside the home increased by an average 0.04% per day, leading to a more than 15% increase in relative mobility over the entire seven-month study period. During times of red tier restrictions, individual mobility increased an additional 0.16% per day and time spent outside the home increased an additional 0.04% when compared to the average. This means that during every 2-week period spent in the red tier, there would be an additional average 3% increase in relative mobility.

The authors conclude that changes to pandemic restrictions are faster during periods characterized by the strictest levels of restrictions. However, they acknowledge that the data used are subject to bias since they include only Facebook and Google users who opted-in to location sharing. In addition, untangling the combined effects of vaccination and new pandemic variants on adherence to pandemic restrictions was not within the scope of the study and requires more work.  It is also important to note that the study did not investigate on the effectiveness of each tiered restriction against the spread of SARS-CoV-2.

Gauvin adds, “By analyzing mobile phone-derived mobility data in Italy, we investigated how adherence to COVID-19 restrictions changed over time, under different levels of increasing stringency. Our results show that adherence can be difficult to sustain over time and more so when the most stringent measures are enforced. Given that milder tiers have been proven to be effective in mitigating the spread of COVID-19, our study suggests policymakers should carefully consider the interplay between the efficacy of restrictions and their sustainability over time.”

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In your coverage, please use this URL to provide access to the freely available article in PLOS Digital Health: https://journals.plos.org/digitalhealth/article?id=10.1371/journal.pdig.0000035

Citation: Delussu F, Tizzoni M, Gauvin L (2022) Evidence of pandemic fatigue associated with stricter tiered COVID-19 restrictions. PLOS Digit Health 1(5): e0000035. https://doi.org/10.1371/journal.pdig.0000035

Author Countries: Italy

Funding: The study was partially supported by the Lagrange Project of the ISI Foundation funded by the CRT Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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