Arbital scope

Want to write on Ar­bital, but are not sure what con­tent to cre­ate?


Cur­rently, Ar­bital is fo­cus­ing on be­com­ing the best place on­line to learn math. This means that, for all math top­ics, we’re keen to have:

  • Sum­maries—Sum­maries ap­pear in popovers and are widely seen by read­ers who want a brief in­tro­duc­tion, so im­prov­ing them or adding them to pages which lack an ap­pro­pri­ate one is high-value.

  • Defi­ni­tion pages—For­mal defi­ni­tions of math­e­mat­i­cal con­cepts. Th­ese provide foun­da­tions for the rest of our con­tent and al­low peo­ple fa­mil­iar with the topic to quickly pick up or re­fresh an idea. Ex­am­ples:

  • Ex­pla­na­tion pages—Sin­gle page ex­pla­na­tions of con­cepts, with differ­ent lenses for peo­ple with differ­ent back­grounds. Th­ese are best suited to mid-sized con­cepts, and should aim to teach them in­tu­itively.

  • Full guides—Multi-page flex­ible guides to top­ics are Ar­bital’s spe­cialty. If you’re con­fi­dent in your abil­ity to ex­plain a com­plex topic, con­sid­er­ing helping to plan and cre­ate these (talk­ing to the com­mu­nity on Slack is usu­ally a good idea, you’ll get valuable feed­back and as­sis­tance on your plans).

  • Ex­ter­nal re­sources lenses—When users are read­ing about a topic on Ar­bital, we’d love to also be able to point them to high-qual­ity ex­ter­nal re­sources where they can learn more, or look at things from an­other an­gle. Gen­er­ally, these links should go in an Ex­ter­nal re­sources lens, con­nected to an ex­ist­ing main page (don’t cre­ate a new stan­dalone page just for links to re­sources, un­less there’s already a main page with a good sum­mary ex­pla­na­tion of the con­cept—we want to make sure users who hover over a green­link to the page will see a good sum­mary).

If you’re fa­mil­iar with the top­ics, cre­at­ing and im­prov­ing pages which are linked from ex­ist­ing guides, es­pe­cially fea­tured guides, is worth fo­cus­ing on since more read­ers will come across them.

list of pos­si­ble pages? show/​hide?

Other do­mains of knowledge

Pages which are not nor­mally clas­sified as math but which are es­sen­tially subtopics of math (like much of the­o­ret­i­cal com­puter sci­ence) are wel­come. We’re look­ing for­ward to ex­pand­ing into phys­i­cal sci­ence, eco­nomics, effec­tive al­tru­ism, health, e-sports and many other top­ics once we’re con­fi­dent we have the fea­tures and com­mu­nity to sup­port them, but cur­rently, we don’t have do­mains for them.

Drafts and un­listed pages on other top­ics may still be cre­ated if there’s some­thing you’re itch­ing to write up, but they won’t show up in search for any­one other than you and will be clearly marked as not hav­ing been ap­proved. So long as it’s not ille­gal, spam, or in vi­o­la­tion of Ar­bital policy (e.g. bi­og­ra­phy policy) we won’t delete it.

Math-ad­ja­cent topics

Topics which are ad­ja­cent to math but not ac­tu­ally math it­self such as the his­tory of math­e­mat­i­cal ideas, bi­ogra­phies of math­e­mat­i­ci­ans, and ap­plied math in differ­ent do­mains (e.g. eco­nomics) are not cur­rently con­sid­ered part of the math do­main. We look for­ward to ex­pand­ing into them, but they, like al­most all top­ics, have more po­ten­tial for con­tro­versy than math it­self, so we’re hold­ing off for now.


We have big plans for mak­ing Ar­bital into an awe­some blog­ging plat­form with smooth in­ter­link­ing with our net­work of knowl­edge, use of req­ui­sites for com­plex top­ics, and a ready-made au­di­ence for high-qual­ity posts. How­ever, cur­rently, we’re not well set up for blog­ging, so un­less for some rea­son you want to use pre-alpha fea­tures it’s prob­a­bly best to blog el­se­where for now.