Celebrating 10 Years of Foundational Questions in Physics and Cosmology!
FQXi’s most popular online content from the past decade

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FQXi launched in May 2006 to catalyze and support research on the foundations of physics and cosmology. To celebrate our 10th anniversary, we're showcasing our top 10 most popular articles, videos, podcasts, essays and the 10 hottest discussion topics at the frontiers of physics, for the past decade. Thank you to the FQXi community, including our contributors, funders and visitors to our site.

Top Articles | Top Videos | Top Podcast Stories | Top Forum & Blog Topics | Top Essays

Articles


Videos

"Is the Multiverse Real?"

Max Tegmark

"Neural Relativity"

David Eagleman

"Boltzmann Brains and Eternal Inflation"

Sean Carroll

"What is Time?"

David Eagleman, Paul Davies, Tim Maudlin, Raissa D'Souza and moderator Jennifer Ouellette.

"Does Time Exist?"

Julian Barbour and Tim Maudlin

"Complexity: Living Systems from Cells to Cities"

Geoffrey West

"What is Consciousness?"

Christof Koch and Giulio Tononi

"String Theory v Loop Quantum Gravity"

Carlo Rovelli and Raphael Bousso

"Is Time an Illusion?"

Julian Barbour




Podcasts





Hot Topics from Forums and Blogs

Wavefunction Collapse Demystified
Garrett Lisi

There has always been an aura of mystical speculation surrounding quantum mechanics and the role of consciousness. The interpretation of wave function collapse (usually referred to as "the measurement problem") seems to lie at the heart of it. So, I'd like to consider the following: The role of the observer making an observation in quantum mechanics is the same as that of a classical observer making an observation of a system that may inhabit one of a number of possibilities. You look at it, and then you know what happened -- until you look at it, you don't know and can only assign probabilities to what may have happened. The weirdness of quantum mechanics is that the possibilities interfere with one another, whereas classically they don't. I'm curious if others here would agree or disagree with this description, and how it might need to be amended or changed?

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Hello everyone! I hope that I have entered the correct forum. :-)

I am a teacher of physics by occupation. I was invited to write a script and work on the visualizations for the new popular science documentary film on the topic of Laws of Nature and whether they are changing. I wrote a draft with perhaps a few additional sentences interspersed. I would like to invite you all to view the draft and discuss it in FQXI forum (or whichever way you prefer).

You can view it here...

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Essays

These are the 10 most popular essays, receiving the most hits from visitors, over the past decade. You can also read the winning essays in each of our contests, as chosen by expert judging panels, here


Compilation volumes containing expanded versions of the winning essays from some of our most recent contests are also available for purchase.


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