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If you are aware of an interesting new academic paper (that has been published in a peer-reviewed journal or has appeared on the arXiv), a conference talk (at an official professional scientific meeting), an external blog post (by a professional scientist) or a news item (in the mainstream news media), which you think might make an interesting topic for an FQXi blog post, then please contact us at with a link to the original source and a sentence about why you think that the work is worthy of discussion. Please note that we receive many such suggestions and while we endeavour to respond to them, we may not be able to reply to all suggestions.

Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.

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February 7, 2023


Please read this entire page before using the FQXi Forum. Your participation in the Forum indicates your acceptance of the Terms of Use, including the Appropriate Content Rules, as detailed below.


The FQXi Forum is a service provided by the Institute to further discussion on topics concerning foundational questions in physics, cosmology, and related fields. It is intended for FQXi Members, scientists, outreach specialists, and the public—that is, everyone!


The FQXi Forum consists of posts, submitted by anyone, on a variety of topics related to foundational questions in physics, cosmology, and related fields, organized into six main categories listed on the Forum's home page.

To view or participate in a discussion, start by clicking on a category of interest and reviewing the topics within that category. You may read or contribute to any topic, or, if there isn't yet a topic on your subject of interest, feel free to start your own.

Within in each topic, there are multiple 'threads', representing different, simultaneous conversations. To comment in a particular thread, click on 'reply to this thread'. A window will appear, in which you can enter your post. To start a new thread, scroll down to the bottom of the page, and use the window under the heading 'Add a New Post'.

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