Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

• Username
• Password
• Remember me

• Sign in using OpenID
• Remember me

• Forgot your password?
• Apply for membership

2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology definitions deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration finite foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeApr 14th 2025
   • PermaLink
   Author: Urs
   Format: MarkdownItexLast night, the nLab page count crossed the mark of 20K (according to the number shown at the top of *[All pages](https://ncatlab.org/nlab/all_pages)*) Now, especially in view of recent events, that nominal number is far from the number of actual topic entries, as it counts also a plethora of deleted pages, include-pages, and author pages --- but it *is* a counter that increases only by editorial activity on the nLab and as such that number, or at least its gradient, is a rough measure for the vitality of the nLab --- which remains low in absolute terms but is stable with a slight upwards trend, I feel. Incidentally, the (always small) group of regularly active individuals, showing some sense of responsibility for the nLab overall, has changed substantially since we crossed, say, 8K entries [in 2013](https://nforum.ncatlab.org/discussion/4850/8000-entries/?Focus=39210) and I'll take the occasion to say heartfelt Thanks! to those who help this site stay afloat. Recent events show that this is far from trivial.

   Last night, the nLab page count crossed the mark of 20K (according to the number shown at the top of All pages)

   Now, especially in view of recent events, that nominal number is far from the number of actual topic entries, as it counts also a plethora of deleted pages, include-pages, and author pages — but it is a counter that increases only by editorial activity on the nLab and as such that number, or at least its gradient, is a rough measure for the vitality of the nLab — which remains low in absolute terms but is stable with a slight upwards trend, I feel.

   Incidentally, the (always small) group of regularly active individuals, showing some sense of responsibility for the nLab overall, has changed substantially since we crossed, say, 8K entries in 2013 and I’ll take the occasion to say heartfelt Thanks! to those who help this site stay afloat. Recent events show that this is far from trivial.

2. • CommentRowNumber2.
   • CommentAuthorDavidRoberts
   • CommentTimeApr 14th 2025
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexBravo everyone! But especially Urs, for contributing the lion's share of content.

   Bravo everyone! But especially Urs, for contributing the lion’s share of content.

3. • CommentRowNumber3.
   • CommentAuthorDavid_Corfield
   • CommentTimeApr 14th 2025
   • (edited Apr 14th 2025)
   • PermaLink
   Author: David_Corfield
   Format: MarkdownItexYes, a hell of an achievement! And it's gratifying to hear people speak fondly of the nLab these days as the go-to place for questions within its scope.

   Yes, a hell of an achievement! And it’s gratifying to hear people speak fondly of the nLab these days as the go-to place for questions within its scope.