Episodios

  • The NotebookLM Mini Series #9: "Super SUPER tiny plastic dust" explained at three levels of difficulty (feat. Denise Mitrano)
    Dec 1 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's NotebookLM is 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 #9 attempts to explain a study on metal-doped microplastics in three ways, for experts, for the general public and for children - Denise Mitrano (ep34) reacts to how NotebookLM produces a deep dive discussion at three levels of complexity on her scientific article in Nature Nanotechnology. Will NotebookLM be able to capture the essence across all levels? Or will it lose the meaning and nuance in its simplification?

    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 & Catchup in a new city
    3:35 What this mini-series is about
    5:29 Guest's prior experience with AI
    8:24 How this experiment works
    10:33 The human summary & expectations
    15:03 Live Reaction on Version 1 - Experts
    28:43 Live Reaction on Version 2 - General Public
    40:29 Live Reaction on Version 3 - Children
    52:58 Post-discussion
    56:15 Thoughts and wishes on the future of AI
    57:04 Wrap up
    57:32 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/
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    59 m
  • #54 - Mats Larsson: What it takes for the sustainable energy transition - from electric vehicles to full grid transformation
    Nov 24 2025

    Mats Larsson, Founder of the Global Energy Transformation (GET) Institute, based in southern Sweden, discusses what it takes to transition to global electrification using sustainable energy. We delve deep into how we can change our oil & gas mobility to more electric vehicles in light of the EU's impending ban on diesel and petrol cars and that it takes more than just technology to create a major paradigm shift. It's not the first time we've embarked on such major transformations in human society, but we need to harness the lessons from the past and act yesterday to be prepared for major changes and uncertainties of the future. The episode is also sprinkled with fun anecdotes around Swedish life and culture (not to mention crime novels).

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

    Chapters:
    0:00 Intro
    1:59 Guest Intro & some Swedish culture
    6:27 The GET Institute and its mission
    7:42 The origin of Mats interest in energy
    14:57 How do alternatives to EVs compare?
    16:53 Planning stepwise for a societal shift - Parallels to Apollo
    20:50 Is there a way to speed up adoption of EVs?
    23:06 A question of cities?
    25:32 Is increased battery life an answer to greater adoption?
    27:28 An insight into Mats' projects at the GET Institute
    37:00 Scaling up sustainable electrification
    41:09 Transition starts by simply starting
    44:10 What about AI?
    47:07 Q&A Start
    47:27 What does innovation mean to you?
    49:10 Key Moment, Event, Book
    51:15 Time Management
    54:51 Favourite Childhood Memory
    55:48 Greatest challenge to date
    58:22 Advice for young professionals
    1:00:15 What would you most like to be remembered for?
    1:01:52 Where can people find you?
    1:03:45 Final Message
    1:03:59 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/
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    1 h y 5 m
  • #53 - Alma Schellart: Making data open, making models talk and embracing uncertainty to solve 100-year old urban drainage challenges
    Nov 10 2025

    Alma Schellart, Senior Lecturer in Water and Engineering at the University of Sheffield, England dives into the world of urban drainage, models and uncertainty and shows us how models and data can can make or break trust in the general public and why we need to be careful and meticulous with our use and communication of these. We discuss types of uncertainty that are encountered in infrastruture decisions, the importance and volatility of open data as well as the age-old challenge of managing urban drainage systems, something that has remained a challenge for over 100 years. We also trace Alma's steps from her early interest in water and growing up in the Netherlands to the literary landscapes of England and how her hobbies are gaining a resurgence in the younger generations and present an opportunity for engagement in all things water and sustainability.

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

    Chapters:
    0:00 Intro
    1.59 Guest Intro and Alma's Knitting Hobby
    8:21 From an obsession with fish to urban drainage
    14:32 Getting to Sheffield for the PhD
    20:40 Setting the scene - models and urban sewers
    24:59 A 101 on Uncertainties
    30:20 Considering uncertainties in design
    35:03 Managing CSOs - the common urban drainage dilemma
    42:09 Modelling vs. Monitoring - what do we and the media trust?
    56:45 Building the trust and the CoUDLabs Project
    1:01:15 Reaching the newer generations and broader communities
    1:02:34 Alma's next big project in sewers - heat recovery
    1:09:19 Q&A Start
    1:09:37 What does innovation mean to you?
    1:11:05 Key Moment, Event, Person
    1:15:01 Time Management
    1:18:32 Favourite childhood memory
    1:21:40 Greatest challenge to date
    1:26:20 Advice for young professionals
    1:27:30 What would you most like to be remembered for?
    1:32:02 Where can people find you?
    1:32:58 Final Message
    1:33:17 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/
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    1 h y 35 m
  • #52 - Makoto Kern: Feature-centric to user-centric - UX Design to navigate global challenges and the “AI Competence Mirage”
    Oct 27 2025

    Makoto Kern, Founder and Principal Design Consultant at iiimpact in Austin Texas USA dives deep into the world of UX (User Experience) Design and shows us how a user-centric approach to software is essential, especially in the disruptive AI landscape. We hear about how he and iiimpact have supported the environmental, resources and healthcare industries, future concerns about cybersecurity and how to navigate the highly disruptive AI landscape, live with AI technology and value the human connection above all others.

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

    Chapters:
    0:00 Intro
    1:59 Guest Intro and Studio Background Design Talk
    4:49 How an electrical engineer got into UX
    12:36 The basics of UX vs. UI
    21:00 The steps to founding iiimpact
    30:21 The domains iiimpact has worked in
    36:47 The AI Competence Mirage and Cybersecurity
    43:37 Tips for Entrepreneurs - the importance of the team
    49:49 Talking AI
    59:42 Make an iiimpact Podcast
    1:04:33 Q&A Start
    1:04:58 What does innovation mean to you?
    1:06:17 Key moment, event, book, person
    1:08:46 Time management
    1:09:48 Favourite childhood memory
    1:12:09 Biggest challenge to date
    1:13:33 Advice for young professionals
    1:14:32 What would you most like to be remembered for?
    1:15:17 Where can people find you?
    1:16:22 Final message
    1:16:43 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/
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    1 h y 18 m
  • #51 - Rob Wreglesworth: A culture reboot for nature, biodiversity and conservation through incentives, conversations and T-shirts
    Oct 13 2025

    Rob Wreglesworth, Associate Ecologist and Innovation Lead at The Environment Bank, Co-Founder of No Longer Known and Host of the Innovate Eco Podcast, based in the UK, goes deep on biodiversity and conservation from both the economic and social lenses. We discuss topics like biodiversity net gain and nature credits, eDNA, current issues with conservation and how Rob is now targeting scarcity mindset with his new startup No Longer Known, a culture reboot, in a sense. T-shirts factor into this discussion and may be a solution to engaging the general public on conservation issues. We also look into how Rob has combined the variety and diversity of skill sets he has gained over his career to create real-world impact.

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

    Chapters:
    0:00 Intro
    1:59 Guest Intro and a conversation between two audiophiles
    5:50 Rob's Motivation for Ecology & Environmental Sciences
    13:03 The issue with species conservation (Newts and bats)
    18:29 Unpacking nature credits, biodiversity and environment banks
    23:38 Diving deeper into biodiversity net gain and biodiversity metrics
    28:30 Soil biodiversity in comparison to animal biodiversity
    29:55 eDNA for understanding the underground
    33:45 Gaining compliance in biodiversity net gain
    40:42 Rob's diversity of projects at The Environment Bank
    43:20 Arming yourself with interdisciplinary knowledge
    45:16 The Innovate Eco Podcast
    52:08 The cultural reboot for conservation with No Longer Known
    1:15:20 Q&A Start
    1:15:50 What does innovation mean to you?
    1:17:47 Key event, book, person
    1:21:57 Time Management
    1:25:03 Favourite childhood memory
    1:27:00 Biggest challenge to date
    1:29:29 Advice to young professionals
    1:32:44 What would you most like to be remembered for?
    1:34:22 Where can people find you?
    1:36:00 Final Message
    1:36:58 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/
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    1 h y 38 m
  • #50 - Tables Turned: Part 2 - Personal reflections on Switzerland vs. favourite places, academia, nature, music, my career and much more…
    Oct 6 2025

    To celebrate 50 episodes of The Grand Challengers Podcast (main series), we return with another "Tables Turned" episode, this time featuring 26 questions from guests as early as Episode 2. Guests from across the show got to ask me a question of their choosing and I have compiled them into a special episode titled "Tables Turned". In this episode, I reflect on Switzerland, the importance of music in my life, academia and where I am heading in my recent decision to start my own company. Join me in this beautiful moment of looking back on my own journey once again and to learn more about me!

    Podcast Intro/Outro Song: Astral Dance by Jimit (Check out more of Jimit's tunes over on Spotify: https://open.spotify.com/artist/0hc1IxPxpmUgEIZGGUGrvm?si=z_uif82xQoqAqUy8KpB7JQ)

    Chapters:
    0:00 Preamble & Intro
    1:33 Introducing the special episode
    3:36 The Old New Year’s Resolution (Jon Hathaway)
    5:53 The house plant saga (Daniele la Cecilia)
    7:42 Favourite places around the world (Bill Hunt)
    9:45 The Matrix of different worlds (Patri Cuervo)
    12:34 Hiking in Switzerland (Jon Hathaway)
    15:32 The Swiss Train System? (Alexa Delbosc)
    17:10 Zurich vs. Melbourne (Jarrod Luxton)
    19:51 Switzerland vs. Singapore (João P. Leitão)
    22:43 The next big physical challenge (Denise Mitrano)
    24:44 Collaboration vs. competition in academia (Katrin Pakizer)
    28:20 Different academic challenges (Luis Sañudo)
    32:59 Unlimited Research Resources (Megan Farrelly)
    35:14 The 5 to 10-year plan (Liah Coggins & Nadja Kunz)
    41:30 Bridging differences in collaboration (Scott Lloyd)
    43:13 What nature is to me (Lucas Gobatti)
    45:13 Favourite BGI (Danielle Dagenais)
    47:02 WSUD vs. Sponge Cities (Tobias Baur)
    48:44 Synergies between mining and BGI (Mohan Yellishetty)
    50:56 How is the industry progressing with circularity? (Don Weatherbee)
    53:16 Changing the world with technology (Yannick Back)
    55:32 Modelling and software bugs (Peter Vanrolleghem)
    57:27 A tribute to Anas Ghadouani
    1:02:21 The importance of music in my life (Françoise Bichai)
    1:07:52 Sounds of intimacy (Sofia Boarino)
    1:12:45 Keeping a positive mindset (Wei-Shan Chen)
    1:17:45 Wrap up
    1:18:20 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/
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    1 h y 20 m
  • #49 - Nadja Kunz: Towards water stewardship in mining, understanding critical minerals, safer and sustainable resource management
    Sep 8 2025

    Nadja Kunz, Associate Professor at the School of Public Policy and Global Affairs, University of British Columbia (UBC), Canada shares her insights on the role of water in mining and the importance of critical minerals for the sustainable energy transition. Most notably, we gain insights into the complexity of the mining industry and its diverse and often forgotten stakeholders. What is required for us to make mining more sustainable, equitable, safe and future-proof?

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

    Chapters:
    0:00 Intro
    1:59 Guest Intro, traditional owners, mountains and beaches
    6:00 Nadja, the network queen
    7:51 Water in the mining sector - Nadja's PhD
    10:04 From double degree to industry and PhD
    16:54 Working in Switzerland and Monglia
    21:51 Moving to UBC Vancouver, Canada
    24:08 Comparing the Australian and Canadian mining landscapes
    25:53 The significance of water management in mining
    31:41 Trying to solve water management holistically in mining
    35:52 From water management to water stewardship
    38:03 Pressing issues in Canada's mining? Critical Minerals
    48:24 Quantified evidence - the example of tailings dams
    59:09 Nadja's Future Plans
    1:01:59 Q&A Start
    1:02:24 What does innovation mean to you?
    1:04:03 Key person book event
    1:05:27 Time Management
    1:07:29 Favourite childhood memory
    1:08:09 Biggest challenge to date
    1:11:08 Advice for young professionals
    1:12:33 What would you most like to be remembered for?
    1:14:13 Final Message
    1:15:15 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/
    Más Menos
    1 h y 16 m
  • #48 - Christoph Ort: Sewers, Drugs and Rock n' Roll - from wastewater surveillance to saving lives in the pandemic
    Aug 25 2025

    Christoph Ort, Group Leader and Head of the Urban Water Maangement Department at the Swiss Federal Institute of Technology dives into the world of wastewater surveillance or wastewater-based epidemiology, techniques, intricacies, use-cases and the broader societal implications. We trace his journey in leading a "band" of disciplines in supporting society during a crisis moment, namely the COVID pandemic, with valuable information on the spread of infections - all by just holding a "magnifying glass" into our sewer systems.

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

    Chapters:
    0:00 Intro
    1:59 Guest Intro and a discussion around two props
    8:37 Getting into Christoph's story - culture engineering
    12:07 The PhD - Dynamics of sewers and micropollutants
    19:48 Introducing wastewater based epidemiology or surveillance
    21:21 Terminology around WWBE and sewer sociology
    23:44 Detecting illicit drugs in sewer systems
    26:57 Briefly - how to detect using analytical chemistry methods
    32:17 Surveillance of SARS-CoV-2 during the pandemic
    39:30 The MS2Field - A mobile lab in a trailer
    41:30 His vision, the institutional context and where is Christoph heading
    45:25 The future of wastewater-based surveillance
    46:48 Syndromic surveillance - the indirect but powerful alternative
    51:26 Rock n' Roll?
    56:08 Q&A Start
    56:25 What does innovation mean to you?
    58:56 Key event, person, book
    1:00:42 Time Management
    1:03:20 Favourite Childhood Memory
    1:04:33 Biggest challenge in career to date
    1:05:55 Advice for young researchers
    1:07:39 What would you most like to be remembered for?
    1:08:30 Where can people find you?
    1:09:19 Final Message
    1:09:38 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/
    Más Menos
    1 h y 11 m