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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/


© 2025 Peter Marcus Bach
Career Success Economics Science
Episodes
  • The NotebookLM Mini Series #7: The “Tablecloth Problem”, headwaters in focus and the pollution party (feat. Belinda Hatt)
    Jul 14 2025

    Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google recently released NotebookLM, a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire podcast episodes. This Mini-Series will explore the power of NotebookLM, our live reactions to its outputs... and a deep dive into some of the topics that we have covered on the show. We feature previous guests, who are here to join in on the fun!

    Episode #7 attempts to create a connected story on the topic of headwater streams - Belinda Hatt (ep20) reacts to how NotebookLM produces a deep dive discussion some of her ongoing work on headwater streams, using a whopping 22 sources, from Water Acts to Strategy Documents, journal papers, design documents and documentation of data sets. Will NotebookLM be able to focus on the key topic or will it go off on endless tangents? What about its infamous analogies?

    Podcast Intro/Outro Song: Funky Fortune by Danny Shields (Check out more of his tunes over on Spotify: https://open.spotify.com/artist/7vRFEGMyTTfeCtc8qiUB82?si=dygdqu9IQLSFYNvVzPNu5w)

    Chapters:
    0:00 Intro
    1:27 Guest Intro - Reflections on the first podcast
    3:00 Introducing the broad topic area
    4:46 Guest's prior experience with AI
    8:37 How this experiment works
    14:09 The prompt and human's summary and expectation
    18:20 Live Reaction
    55:58 Post-discussion
    1:02:59 Thoughts and wishes for the future of AI
    1:06:11 Wrap up
    1:07:40 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 9 mins
  • #46 - Mark Swinnerton: Gravity vs. "giant hockey pucks" - what disused mines and renewable energy storage have in common
    Jul 7 2025

    Mark Swinnerton, CEO of Green Gravity, shares his journey from metallurgy to mining operations and currently gravitational storage technology to support the energy transition. We get an in-depth look into how he is transforming the renewable energy storage industry and giving old mine shafts a new lease on life, an insight into the technology and logistics and how businesses are evolving in this new digital age. Tune in for some amazing advice from someone with decades of global experience in a major industry and influences so many aspects of our daily lives!

    Podcast Intro/Outro Song: Starsky by Alex Keren (Check out more of his tunes over on Spotify: https://open.spotify.com/artist/5vZ3lENfDLjkln8scBJ8mW)

    Chapters:
    00:00 Intro
    1:59 Guest Intro and Wollongong, Australia
    3:52 Mark's infamous selfie-stick - communicating authenticity
    9:10 Mark's journey from metallurgy to mining
    15:17 Reflecting on Mark's 9 years in Singapore
    18:16 Handling large responsibilities
    20:19 The challenge of mining legacy issues
    23:01 Mark's own perception of mining legacy issues
    24:26 What is Green Gravity? - the concept of gravitational storage
    32:30 VIsualizing the scale of mines
    35:30 Increasing importance of energy storage
    38:31 Building up Partnerships in preparation for technology readiness
    42:00 Multiple benefits of Green Gravity’s technology
    46:02 What is Mark most excited about?
    47:42 Relationship between mines and urban areas - the Ballarat example
    52:29 The changing world of business - from corporation to startup
    1:00:48 Q&A Start
    1:01:09 What does innovation mean to you?
    1:03:42 Key moment, book, person
    1:09:26 Time Management
    1:11:39 Favourite childhood memory
    1:14:15 Biggest challenge in career to date
    1:16:39 What would you most like to be remembered for?
    1:17:57 Where can people find you?
    1:18:38 Final Message
    1:19:04 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 20 mins
  • The NotebookLM Mini Series #6: These are neither the pollutants nor researcher you are looking for (feat. Lena Mutzner)
    Jun 23 2025

    Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google recently released NotebookLM, a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire podcast episodes. This Mini-Series will explore the power of NotebookLM, our live reactions to its outputs... and a deep dive into some of the topics that we have covered on the show. We feature previous guests, who are here to join in on the fun!

    Episode #6 attempts to create a biographical piece - Lena Mutzner (ep45) reacts to how NotebookLM produces a deep dive discussion about her, using all her available publications, her PhD Thesis and up-to-date CV as sources. Will NotebookLM be able to capture the essence of her work and career to date?

    Podcast Intro/Outro Song: Funky Fortune by Danny Shields (Check out more of his tunes over on Spotify: https://open.spotify.com/artist/7vRFEGMyTTfeCtc8qiUB82?si=dygdqu9IQLSFYNvVzPNu5w)

    Chapters:
    0:00 Intro
    1:26 Guest Intro and AI Impressions
    3:12 Guest prior experience with AI
    8:49 AI for Graphic Design in Research & Communication
    9:59 How this experiment works
    12:16 The human summary - or setting expectations
    13:47 Live Reaction
    41:39 Post-discussion
    47:23 Evaluating the analogies
    49:29 Discussing the accuracy and inner workings
    52:53 Wrap Up
    54:46 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
    56 mins
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