One of Keith Johnson’s final interviews: a brilliant mind on dark matter, water, and fusion.

Read about Keith’s legacy here: https://news.mit.edu/2025/keith-johnson-materials-scientist-independent-filmmaker-dies-0723

This episode is one of the final recorded conversations with MIT physicist Keith Johnson, who passed away just weeks after our interview. In this conversation, he unpacks his early research on the quantum structure of matter, his cold fusion theories, and how it all led to a screenplay about a young female physicist. Johnson also suggests a radical idea: water clusters in space might explain some aspects of dark matter. A one-of-a-kind interview that blends science, art, and speculation.

We’re honored to share this glimpse into Keith’s remarkable intellect, creativity, and curiosity. May his legacy continue to inspire.

Follow us for more technical interviews with the world’s greatest scientists:

Twitter: https://x.com/632nmPodcast

Instagram: https://www.instagram.com/632nmpodcast?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==

LinkedIn: https://www.linkedin.com/company/632nm/about/

Substack: https://632nmpodcast.substack.com/

Follow our hosts!

Michael Dubrovsky: https://x.com/MikeDubrovsky

Misha Shalaginov: https://x.com/MYShalaginov

Xinghui Yin: https://x.com/XinghuiYin

Subscribe:

Apple Podcasts: https://podcasts.apple.com/us/podcast/632nm/id1751170269

Spotify: https://open.spotify.com/show/4aVH9vT5qp5UUUvQ6Uf6OR

Website: https://www.632nm.com

Timestamps:

00:00 - Intro

01:03- Early Life and Education

03:27 - Graduate Studies and Research Funding

05:44 - Postdoctoral Work and Quantum Chemistry

09:45 - Starting at MIT and Collaborations

15:05 - Cold Fusion and Film Making

23:38 - Keith's First Screenplay

28:55 - Filming a Movie at MIT

43:50 - Water Clusters and Quantum Energy

53:54 - Is Cold Fusion Possible?

1:07:13 - Challenges in Fusion Energy

1:12:09 - Advice for Young Scientists

APPENDIX:

1:15:42 - Water Might Be Connected to Dark Matter

1:24:49 - Cosmic Dust and Supernovae

1:28:36 - The Role of Water in the Universe

1:38:32 - The Future of Dark Matter Research

1:51:27 - Water Might Have Been Created Sooner After the Big Bang

#KeithJohnson #MIT #ScienceAndStorytelling #QuantumPhysics #DarkMatter #Astrobiology #BreakingSymmetry