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

Bookmark and Share

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



"Complexity: Living Systems from Cells to Cities"

Geoffrey West

"Is Consciousness a State of Matter?"

Max Tegmark

"Neural Relativity"

David Eagleman

"What is Consciousness?"

Christof Koch and Giulio Tononi

"What is Time?"

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

"String Theory v Loop Quantum Gravity"

Carlo Rovelli and Raphael Bousso

"Is Time an Illusion?"

Julian Barbour

"Does Time Exist?"

Julian Barbour and Tim Maudlin

"Is the Multiverse Real?"

Max Tegmark


Hot Topics from Forums and Blogs

An Exceptionally Simple Personal FAQ
Garrett Lisi

Over the past month I have been asked many questions about my personal history and opinions on life, the universe, and everything. I have also received many emails of encouragement from the general public, which have been wonderful and completely overwhelming. This blog comment thread will collect my responses to questions about my history and opinions, in chronological order. If you would like to offer your own opinions, encouragement, or discouragement, feel free. There is a separate, Exceptionally Simple FAQ that has descriptions of E8 Theory suitable for the interested reader.

Comment on this Topic

Please read the important Introduction that governs your participation in this community. Inappropriate language will not be tolerated and posts containing such language will be deleted. Otherwise, this is a free speech Forum and all are welcome! view instructions

Your name: (optional)

Recent Comments

To exist, an "it" must have non-zero possibilities existing in its nonStandardFuture, and leave a shadow behind it in its nonStandardPast. It rides a unique proper time, just as the youth in Parmenides' poem rides a chariot.

Garrett, What if (a) now = (moment, now) and (b) moment = (nonStandardPast, standardPresent, nonStandardFuture)? ____ (in the languages of non-wellFounded sets and nonStandardAnalysis)? and also it = (bit, it) ____ a "non-wellFounded Set" _____ in the nonstandardFuture, two possibilities exist for the 'bit' that are nonzero: 1 and 0 _____ while the shadow of "it" is either 1 or 0 in the nonStandardPast_____ and here's how it works: (1) it = (bit, it) (2). it =...

read all comments
Click here to see another of our top forum topics


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.

Please enter your e-mail address:

Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.