124 | Solo: How Time Travel Could and Should Work

124 | Solo: How Time Travel Could and Should Work

Time! It doesn't stop, psychological effects of being under lockdown notwithstanding. How we experience time depends on our situation, but time itself just marches forward. Unless, of course, it's possible to travel to the past, as countless science-fiction scenarios have depicted. But does that really make sense? Couldn't we then change the past, even so dramatically that our own existence would never have happened? In this solo podcast I talk about both the physics and fiction of time travel. I point out that it might be allowed by the laws of physics, and explain how that would work, but that we really don't know. And I try to make sense of some of the less-sensible depictions of cinematic time travel. Coming up with a logical theory that could account for Back to the Future isn't easy, but podcasting isn't for the squeamish.

Support Mindscape on Patreon.

But wait, there's more! I was contacted by Janna Levin, who we fondly remember from Episode 27. Janna moonlights as Chair and Director of Sciences at Pioneer Works, an institution dedicated to bringing together creative people in art and science. Like the rest of us, they've been looking for ways to offer more online content in these pandemic times, so we thought about ways to collaborate. Here's what they came up with: artist Azikiwe Mohammed has created an animated video backdrop to this podcast episode. The visuals are trippy, colorful, and inspired by (without trying to directly illustrate) what I talk about in the episode. You can check out a brief write-up at the Pioneer Works site, or view the video directly below.

https://www.youtube.com/watch?v=kHy1j4LiyGQ

Jaksot(416)

148 | Henry Farrell on Democracy as a Problem-Solving Mechanism

148 | Henry Farrell on Democracy as a Problem-Solving Mechanism

Democracy posits the radical idea that political power and legitimacy should ultimately be found in all of the people, rather than a small group of experts or for that matter arbitrarily-chosen heredi...

24 Touko 20211h 26min

147 | Rachel Laudan on Cuisine, Culture, and Empire

147 | Rachel Laudan on Cuisine, Culture, and Empire

For as much as people talk about food, a good case can be made that we don't give it the attention or respect it actually deserves. Food is central to human life, and how we go about the process of cr...

17 Touko 20211h 16min

AMA | May 2021

AMA | May 2021

Welcome to the May 2021 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). I take the large number of questio...

13 Touko 20212h 58min

146 | Emily Riehl on Topology, Categories, and the Future of Mathematics

146 | Emily Riehl on Topology, Categories, and the Future of Mathematics

"A way that math can make the world a better place is by making it a more interesting place to be a conscious being." So says mathematician Emily Riehl near the start of this episode, and it's a good ...

10 Touko 20211h 16min

145 | Niall Ferguson on Histories, Networks, and Catastrophes

145 | Niall Ferguson on Histories, Networks, and Catastrophes

The world has gone through a tough time with the COVID-19 pandemic. Every catastrophic event is unique, but there are certain commonalities to how such crises play out in our modern interconnected wor...

3 Touko 20211h 25min

144 | Solo: Are We Moving Beyond the Standard Model?

144 | Solo: Are We Moving Beyond the Standard Model?

I've been a professional physicist since the 1980's, and not once over the course of my career has a particle-physics experiment produced a completely surprising new result. We've discovered particles...

26 Huhti 20211h 11min

143 | Julia Galef on Openness, Bias, and Rationality

143 | Julia Galef on Openness, Bias, and Rationality

Mom, apple pie, and rationality — all things that are unquestionably good, right? But rationality, as much as we might value it, is easier to aspire to than to achieve. And there are more than a few h...

19 Huhti 20211h 32min

AMA | April 2021

AMA | April 2021

Welcome to the April 2021 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). I take the large number of quest...

14 Huhti 20212h 41min

Suosittua kategoriassa Tiede

rss-mita-tulisi-tietaa
rss-poliisin-mieli
tiedekulma-podcast
utelias-mieli
rss-luontopodi-samuel-glassar-tutkii-luonnon-ihmeita
rss-duodecim-lehti
docemilia
radio-antro
filocast-filosofian-perusteet
rss-tervetta-skeptisyytta