Brain-computer interfaces (BCIs) have been allowing humans to control objects with their minds for nearly half a century. But in recent years, thanks partly to advances in AI, the technology has evolved dramatically; wearable and implantable devices are now being used to restore speech and movement to stroke survivors, alleviate depression and treat pain. While companies like Elon Musk’s Neuralink grab headlines, a somewhat quieter revolution is happening in Canada, where researchers are using BCI to help a historically underserved population: disabled children. In this episode, we explore BCI’s potential to transform medicine, the knotty ethical questions at its core and how the tech might just bring us closer together.

Featured in this episode:

Dr. Adam Kirton is a professor of pediatrics, radiology and clinical neurosciences at the University of Calgary, where he’s also the director of the BCI4Kids program. He is also the director of the Calgary Pediatric Stroke Program and is a practicing pediatric neurologist at the Alberta Children’s Hospital. He co-founded, and is the CMO, of Possibility Neurotechnologies

Anne Vanhoestenberghe is a professor of active implantable medical devices at King’s College London and director of MAISi, a facility for the manufacture of active implants and surgical instruments, housed at St. Thomas’ Hospital in London, England.

Dion Kelly is a clinical neuroscientist and the co-founder and CEO of Possibility Technologies. Dion and Adam launched the company in 2022 to commercialize their brain-controlled technology, which transforms thoughts into actions.

Stephanie Sonnenberg and her daughter, Claire, live outside of Calgary, Alberta. Claire was one of the first users of Possibility Technologies’ BCI device, Think2Switch.

Further reading:

The past, present and future of brain-computer interfaces

We’ve been connecting brains to computers longer than you’d expect. These three companies are leading the way

Adam Kirton’s Lindenlauer lecture, Columbia University, November, 2024

Altman’s Merge raises $252 million to link brains and computers

What it’s like to have a brain implant for five years

Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com.

The fashion industry has its fair share of dirty secrets, but one of the lesser-known is how much it pollutes our waterways. Every year, garment factories use as much as 2 trillion gallons of water to dye clothes, and most of that water, now filled with harmful chemicals, flows untreated into rivers, streams and lakes. Those pollutants can turn rivers black, harm marine life and cause cancer. Macarena Cataldo, a chemical engineer based in Vancouver, has come up with an ingenious way to remove these contaminants before they even reach the water. In this episode, Cataldo talks to Manjula Selvarajah about the global water crisis, how her technology works and efforts to get major fashion brands to change their ways.

Featured in this episode:

Macarena Cataldo is the CEO and CTO of Viridis Research, which she co-founded in 2019 to solve various global water challenges by eliminating pollutants from water sources. She has a PhD in chemical engineering, and has spent more than 15 years applying electrochemistry to drinking and wastewater treatment working with the European Space Agency, the Metropolitan Water Company of Turin and others.

Further reading:

Asian rivers are turning black. And our colourful closets are to blame

Why colouring clothes has a big environmental impact

World enters era of “global water bankruptcy”

Water crisis in Chile: Are we close to day zero?

Subscribe to Solve for X: Innovations to Change the World here. And below, find a transcript to “Colour block.”

Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com.

There’s no denying that technology plays — and will continue to play — a critical role in addressing the climate crisis. But could super-intelligent AI actually solve the problem for us, as several tech billionaires claim? Or is this over-reliance on speculative technology simply a way to distract us from tackling big, real-world problems. Manjula Selvarajah sits down with astrophysicist and author Adam Becker to separate the hype from reality.

Featured in this episode:

Adam Becker is an astrophysicist, journalist and the author of More Everything Forever, a book that examines the futuristic ideologies of Silicon Valley’s tech titans. He is a former science journalism fellow at the Santa Fe Institute and was also a science communicator in residence at the Simons Institute for the Theory of Computing at UC Berkeley.

Marcius Extavour is a scientist, creative technologist and communicator who develops solutions for climate change and clean energy. As a partner at Ode, a technology and creative design firm specializing in geospatial AI. He previously built the energy, climate and carbon removal practice at XPRIZE.

Further reading:

Silicon Valley is at an inflection point
Tech oligarchs are gambling our future on a fantasy
Travelling to Mars and beating death: The futurist creed of tech’s apostles

More Everything Forever

Subscribe to Solve for X: Innovations to Change the World here. And below, find a transcript to “Infinity quest.”

Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com.