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The Grand Challengers Podcast

The Grand Challengers Podcast

By: Peter Marcus Bach
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In a world facing climate change, urbanization, and population growth, inspiring individuals are stepping up with innovative solutions. Each episode features passionate guests working at the cutting edge of science, engineering, technology, and design. Through their journeys, they share insights and personal growth while creating new ways of thinking for an uncertain future. Tune in for actionable advice and inspiration for young professionals aiming to make a difference.


If you enjoy the show, please hit the follow or subscribe button! That's a small way you can help the show grow and reach many more ears!


Show Website: https://www.petermbach.com/podcast/


LinkedIn: https://www.linkedin.com/company/tgcpodcast/


© 2026 Peter Marcus Bach
Career Success Economics Science
Episodes
  • #66 - Douglas Katz: A veteran's three acts, the ability curve and reinventing the knife
    Jul 6 2026

    What if the kitchen knife you have used your whole life was designed for a fight, not for cooking? Douglas Katz thinks we can do better. "If you designed a knife for a robot, it wouldn't look like the linear knife that we have today," he says, and that single reframe sits at the heart of this episode.

    Douglas is a West Point graduate, a disabled US Army veteran and a lifelong inventor who tells his story in three acts. From the leadership lab of the military, through a long and often grim chapter in corporate America, to the workshop where he forged a new kind of blade, his journey is one of reframing what looks fixed until something better becomes possible.

    After upper body injuries made an ordinary knife painful to hold, Douglas refused to give up cooking and redesigned the tool instead. The result is NULU, an adaptive kitchen knife inspired by the traditional Inuit ulu and built around a concept his team calls force transfer geometry. From there grew a bigger idea. Ability and disability, he argues, are not a switch you flip. They are task-based and they move along a curve we all travel. We will all age into disability, and designing for that reality makes life better for everyone.

    Along the way Peter and Douglas get into Aikido and softness, barrier-free, universal and inclusive design, ADHD as a feature set rather than a bug, and why AI might be the infinite assistant that lets more of us think like Tony Stark. It is honest, funny and quietly profound.

    Chapters:
    0:00 Intro
    1:59 Guest Intro & Aikido
    9:12 Douglas' Story in Three Acts: The Military
    16:29 A precursor to the second Act - Leadership
    19:39 The second Act - Corporate America
    25:56 The third Act and Doug's current innovation
    36:36 Reframing ability and disability and design for it
    41:39 A 101 on Disability Design Theories
    48:03 The NULU Knife - an example of adaptive design
    51:27 Helping incubate adaptive design ideas
    53:30 A discussion on "ADHD wiring”
    1:02:09 Intelligence, pattern recognition and AI
    1:08:20 AI in work and education
    1:14:41 Doug's Future Plans
    1:18:34 Q&A Start
    1:18:53 What does innovation mean to you?
    1:19:17 Key Moment, Event, Person
    1:21:59 Time Management
    1:24:43 Favourite childhood memory
    1:27:02 Biggest challenge to date
    1:30:41 Advice for young professionals
    1:33:55 What would you most like to be remembered for?
    1:35:31 Where can people find you?
    1:37:07 Final Message
    1:37:41 Outro

    Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
    Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

    Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
    Your subscription/follow will greatly help the show grow and reach a wider audience.

    Hosted by Peter Marcus Bach (www.petermbach.com), follow me on:

    • X (fomerly Twitter): @petermbach
    • Instagram: @petermbach87
    • Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/
    Show More Show Less
    1 hr and 39 mins
  • #65 - David Gottfried: The father of the green building says 'it's not enough' - from LEED to regeneration and from human to humane
    Jun 22 2026

    What if the system you spent four decades building turned out to not be enough?

    David Gottfried is the father of the global green building movement. He founded the U.S. Green Building Council and the World Green Building Council, and helped create LEED, the rating system now used across more than 180 countries and tied to a trillion-dollar green economy. And yet he is the first to say it has not bent the curve far enough. Carbon keeps climbing. The ship is still heading for the iceberg, and we are busy bolting solar panels to the deck.

    In this wide-ranging conversation, David takes Peter through the whole arc. A quick 101 on what actually makes a building green, from orientation and glazing to greywater and healthy materials. How LEED grew from a white paper into a global standard. And why he now argues we need to move from sustainability to regeneration, from human to humane, and build a new scoreboard he calls HOPE (Health On Planet Earth).

    It is also a deeply personal story. A Stanford engineer who read Siddhartha every birthday and came to see himself as the ferryman. A developer who lost a building in the crash and went looking for purpose. A man who took up kung fu in his late fifties, fly fishes alone in cold creeks, and used AI as a thinking partner to turn 2,400 pages of dog-walk voice notes into his fourth book.

    Chapters:
    0:00 Intro
    1:59 Guest Intro, Kung Fu & Fly Fishing
    9:34 A 101 on Green Buildings…
    16:11 ...and a 101 on the LEED System
    18:45 Why study engineering?
    20:40 Siddartha's Influence on David
    26:43 Origins of the Green Building Movement
    42:06 Green Buildings aren't enough
    50:57 Pushing the needle and finding the correct metrics
    1:01:37 A true Human-AI collaboration
    1:10:07 David's Hope and Future Vision
    1:12:14 Q&A Start
    1:12:28 What does innovation mean to you?
    1:15:28 Key Event, Book, Person
    1:20:13 Time Management
    1:24:58 Favourite childhood memory
    1:27:57 Greatest Challenge to Date
    1:33:04 Advice for young professionals
    1:36:16 What would you most like to be remembered for?
    1:37:01 Where can people find you?
    1:38:42 Final Message
    1:39:29 Outro

    Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
    Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

    Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
    Your subscription/follow will greatly help the show grow and reach a wider audience.

    Hosted by Peter Marcus Bach (www.petermbach.com), follow me on:

    • X (fomerly Twitter): @petermbach
    • Instagram: @petermbach87
    • Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/
    Show More Show Less
    1 hr and 41 mins
  • #64 - Alex Josephson: When Architecture Misbehaves, from Spreadsheets in the Sky to Digital Tombs
    Jun 8 2026

    "Why is our architecture not as diverse as our culture is progressive?" That's the question Toronto-based architect Alexander Josephson keeps asking. On this episode, he doesn't pull punches.

    Alex is the co-founder and creative director of PARTISANS, the studio behind the Grotto Sauna, the masterplan to resurrect Toronto's gargantuan Hearn power plant into a cultural district, and The Orbit, a radial reinvention of the Garden City for a transit-oriented future. He's also founder and CEO of Cumulus, an immersive digital memorialisation platform born from his father's brush with death during COVID. Across two decades, Alex has staked out a position that's part critique, part call to arms: that the condo towers crashing into Toronto's skyline are "spreadsheets in the sky", that greenwashed sustainability mandates have made architects pawns of capital, and that buildings should be "thousand-year worthy".

    In this conversation we trace Alex's nonlinear journey into architecture (the University of Waterloo, Rome with Massimiliano Fuksas, the AA in London which he dropped out of), the founding of PARTISANS in a Toronto storage locker, his master's thesis redesigning Mecca around a singularity, the Grotto Sauna's pre-fabricated arrival by barge, the disco ball that helped ignite the Hearn's cultural revival, and what it takes to design a "complete community" amid Canada's worst real estate downturn in a century. We also wrestle with AI in design ("it's just a tool, like a pencil"), the case for interfaith architecture as a path to peace, and how personal grief gave rise to Cumulus, his "digital tomb" for the family memories trapped on our devices. A spirited, irreverent and sometimes uncomfortable episode for anyone who builds, designs, or simply lives among buildings.

    Chapters:
    0:00 Intro
    1:59 Guest Intro, Toronto & Tim Hortons
    3:59 "Spreadsheets in the Sky”
    9:40 A radical redesign of Mecca
    15:01 Interfaith architecture for peace
    17:59 Origins of the "Rebel Archtiect”
    31:49 PARTISANS - the "Apple" story of Architecture?
    37:25 The Grotto Sauna
    38:57 Urban Regeneration - The Hearn
    50:37 Building on the Garden City - The Orbit
    57:15 Receptivity to radical ideas from the client's side
    1:01:41 Real issues with 'sustainability' in architecture
    1:12:12 Reflecting back on the why of pursuing architecture
    1:19:43 The impact of AI in Architecture
    1:23:04 The story of Cumulus - digital memorialization
    1:43:00 Q&A Start
    1:43:22 What does innovation mean to you?
    1:44:24 Key event, book, person
    1:47:19 Time Management
    1:49:55 Favourite childhood memory
    1:50:47 Biggest challenge to date
    1:53:33 Advice for young professionals
    1:55:19 What would you most like to be remembered for?
    1:57:03 Where can people find you?
    1:58:32 Final message
    1:58:45 Outro

    Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
    Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

    Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
    Your subscription/follow will greatly help the show grow and reach a wider audience.

    Hosted by Peter Marcus Bach (www.petermbach.com), follow me on:

    • X (fomerly Twitter): @petermbach
    • Instagram: @petermbach87
    • Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/
    Show More Show Less
    2 hrs
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