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Content Guidelinesplugin-autotooltip__plain plugin-autotooltip_bigContent guidelines

Ideas for new topics are always welcomed, from experts and non-experts alike - if you're not sure if they'll be accepted by other editors, put them in the 'Proposed content' section for approval. The easiest way to create a new page is to use the

Registrationplugin-autotooltip__plain plugin-autotooltip_bigRegistration

At present, only registered users can create and edit articles. The registration process is very straightforward. Just click the 'Register' link at the top right of any page.

After you've registered, you'll be able to login with your password at any time…

How to edit pagesplugin-autotooltip__plain plugin-autotooltip_bigEditing pages

Once you're logged in, a grey floating 'Tool' menu at the right hand side of the screen enables access to all the main 'Content Pages' for editing. (Note: Some pages, such as the site info etc. are locked)

Like most Wikis, the site doesn't use

Importance Ratingsplugin-autotooltip__plain plugin-autotooltip_bigImportance ratings

In a departure from the usual Wiki format, Wikenigma assigns 'Importance Ratings' to some pages.

The idea is to separate articles which are considered (by the editors) to cover exceptionally important unknown issues from those which (although also u…

Faqplugin-autotooltip__plain plugin-autotooltip_bigFrequently Asked Questions

Q. Why the weird syntax? A. Like most Wikis, the site doesn't use HTML for formatting (security reasons etc). A guide to the special syntax can be found here. Unfortunately it can be quite confusing at first - but there's now a new 'Visual …

Newsplugin-autotooltip__plain plugin-autotooltip_bigNews

[ newest at the top ]

• Oct 2020 : A milestone of 500 unknown articles has been reached.

• Aug 2020 : Currently (beta) testing the new 'WYSIWYG' (What You See Is What You Get) page editor. It greatly simplifies the editing process, avoiding the need to learn th…

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Legalplugin-autotooltip__plain plugin-autotooltip_bigLegal

Content in general

Please note that in common with other publicly editable wikis, this website is not responsible for content posted by the public. Nevertheless, the ongoing editing process should be able to remove unsuitable content in a reasonable time. If you…


541 unknowns listed

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Wikenigma - an Encyclopaedia of Unknowns Wikenigma - an Encyclopaedia of the Unknown Science

Spacetime atoms

The concept of (seemingly) smooth Einsteinian spacetime (three physical dimensions inextricably bound together with time as the fourth) has not yet been unified with the theoretical and observable 'granulality' of quantum physics.

As a means of integrating these two seemingly incompatible paradigms, the idea of Spacetime Atoms (i.e. discrete particles of spacetime) was introduced in the early 2000s.

“We do not have a successful theory of spacetime that coherently incorporates the quantum nature of the physical world, so we do not yet know the nature of the deep structure of spacetime. Some of the observational facts on which the new theory will be built may, therefore, now be only roughly communicable and our sense-experience of the passage of time may be an example of such a fact.
In the last decades, however, progress on one approach to finding a theory of quantum spacetime – or quantum gravity as it is usually called – affords us a forward look at how the passage of time may eventually find a place in science.”

See:'The birth of spacetime atoms as the passage of time' (2014) by professor Fay Dowker, Blackett Laboratory, Imperial College, UK.

Note that the spacetime atom theory, along with causal set theory (see paper above) supports a cosmological effect analogous to so-called dark energyplugin-autotooltip__plain plugin-autotooltip_bigDark Energy

"“The observational results of the latest 15 to 20 years have established a standard model for the cosmology which has some amazing consequences. A mysterious entity, the dark energy, has been confirmed as the dominant component of the Universe, and is als…
, and also asserts that it had a negative value at the 'beginning' of the universe - thus accounting for the (measured) acceleration of the expansion of the universe.

Further info: A BBC radio (podcast) interview with professor Dowker, 2107.


Also see: Arrow of Timeplugin-autotooltip__plain plugin-autotooltip_bigArrow of Time

A term coined in 1927 by the British astronomer Arthur Eddington to describe the “one-way direction” or “asymmetry” of time.

For most people, the notion that time passes only in one direction is a given. There are multiple reasons for taking this point …


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