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# nick        = xkcd
# url         = https://feeds.twtxt.net/xkcd/twtxt.txt
# source      = https://xkcd.com/rss.xml
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# updated_at  = 2022-01-24T20:08:05Z
#
2020-07-09T01:54:52Z	Acceptable Risk ⌘ https://xkcd.com/2330/
2020-07-09T01:54:52Z	Universal Rating Scale ⌘ https://xkcd.com/2329/
2020-07-09T01:54:52Z	Space Basketball ⌘ https://xkcd.com/2328/
2020-07-09T01:54:52Z	Oily House Index ⌘ https://xkcd.com/2327/
2020-07-10T22:11:40Z	Hamster Ball 2 ⌘ https://xkcd.com/2331/
2020-07-13T23:03:12Z	Cursed Chair ⌘ https://xkcd.com/2332/
2020-07-15T16:25:44Z	COVID Risk Chart ⌘ https://xkcd.com/2333/
2020-07-17T04:00:00Z	Slide Trombone ⌘ https://xkcd.com/2334/
2020-07-20T04:00:00Z	Photo Deposit ⌘ https://xkcd.com/2335/
2020-07-22T04:00:00Z	Campfire Habitable Zone ⌘ https://xkcd.com/2336/
2020-07-24T04:00:00Z	Asterisk Corrections ⌘ https://xkcd.com/2337/
2020-07-27T04:00:00Z	Faraday Tour ⌘ https://xkcd.com/2338/
2020-07-29T04:00:00Z	Pods vs Bubbles ⌘ https://xkcd.com/2339/
2020-07-31T04:00:00Z	Cosmologist Genres ⌘ https://xkcd.com/2340/
2020-08-03T04:00:00Z	Scientist Tech Help ⌘ https://xkcd.com/2341/
2020-08-05T04:00:00Z	Exposure Notification ⌘ https://xkcd.com/2342/
2020-08-07T04:00:00Z	Mathematical Symbol Fight ⌘ https://xkcd.com/2343/
2020-08-10T04:00:00Z	26-Second Pulse ⌘ https://xkcd.com/2344/
2020-08-12T04:00:00Z	Wish on a Shooting Star ⌘ https://xkcd.com/2345/
2020-08-14T04:00:00Z	COVID Risk Comfort Zone ⌘ https://xkcd.com/2346/
2020-08-17T04:00:00Z	Dependency ⌘ https://xkcd.com/2347/
2020-08-19T04:00:00Z	Boat Puzzle ⌘ https://xkcd.com/2348/
2020-08-21T04:00:00Z	Rabbit Introduction ⌘ https://xkcd.com/2349/
2020-08-24T04:00:00Z	Deer Turrets ⌘ https://xkcd.com/2350/
2020-08-26T04:00:00Z	Standard Model Changes ⌘ https://xkcd.com/2351/
2020-08-28T04:00:00Z	Synonym Date ⌘ https://xkcd.com/2352/
2020-08-31T04:00:00Z	Hurricane Hunters ⌘ https://xkcd.com/2353/
2020-09-02T04:00:00Z	Stellar Evolution ⌘ https://xkcd.com/2354/
2020-09-04T04:00:00Z	University COVID Model ⌘ https://xkcd.com/2355/
2020-09-07T04:00:00Z	Constellation Monstrosity ⌘ https://xkcd.com/2356/
2020-09-09T04:00:00Z	Polls vs the Street ⌘ https://xkcd.com/2357/
2020-09-11T04:00:00Z	Gravitational Wave Pulsars ⌘ https://xkcd.com/2358/
2020-09-14T04:00:00Z	Evidence of Alien Life ⌘ https://xkcd.com/2359/
2020-09-16T04:00:00Z	Common Star Types ⌘ https://xkcd.com/2360/
2020-09-18T04:00:00Z	Voting ⌘ https://xkcd.com/2361/
2020-09-21T04:00:00Z	Volcano Dinosaur ⌘ https://xkcd.com/2362/
2020-09-23T04:00:00Z	Message Boards ⌘ https://xkcd.com/2363/
2020-09-25T04:00:00Z	Parity Conservation ⌘ https://xkcd.com/2364/
2020-09-28T04:00:00Z	Messaging Systems ⌘ https://xkcd.com/2365/
2020-09-30T04:00:00Z	Amelia's Farm Fresh Cookies ⌘ https://xkcd.com/2366/
2020-10-02T04:00:00Z	Masks ⌘ https://xkcd.com/2367/
2020-10-05T04:00:00Z	Bigger Problem ⌘ https://xkcd.com/2368/
2020-10-07T04:00:00Z	All-in-One ⌘ https://xkcd.com/2369/
2020-10-09T04:00:00Z	Prediction ⌘ https://xkcd.com/2370/
2020-10-12T04:00:00Z	Election Screen Time ⌘ https://xkcd.com/2371/
2020-10-14T04:00:00Z	Dialect Quiz ⌘ https://xkcd.com/2372/
2020-10-16T04:00:00Z	Chemist Eggs ⌘ https://xkcd.com/2373/
2020-10-19T04:00:00Z	10,000 Hours ⌘ https://xkcd.com/2374/
2020-10-21T04:00:00Z	Worst Ladder ⌘ https://xkcd.com/2375/
2020-10-23T04:00:00Z	Curbside ⌘ https://xkcd.com/2376/
2020-10-26T04:00:00Z	xkcd Phone 12 ⌘ https://xkcd.com/2377/
2020-10-28T04:00:00Z	Fall Back ⌘ https://xkcd.com/2378/
2020-10-30T04:00:00Z	Probability Comparisons ⌘ https://xkcd.com/2379/
2020-11-02T05:00:00Z	Election Impact Score Sheet ⌘ https://xkcd.com/2380/
2020-11-04T05:00:00Z	The True Name of the Bear ⌘ https://xkcd.com/2381/
2020-11-06T05:00:00Z	Ballot Tracker Tracker ⌘ https://xkcd.com/2382/
2020-11-09T05:00:00Z	Electoral Precedent 2020 ⌘ https://xkcd.com/2383/
2020-11-11T05:00:00Z	Set in the Present ⌘ https://xkcd.com/2384/
2020-11-13T05:00:00Z	Final Exam ⌘ https://xkcd.com/2385/
2020-11-16T05:00:00Z	Ten Years ⌘ https://xkcd.com/2386/
2020-11-18T05:00:00Z	Blair Witch ⌘ https://xkcd.com/2387/
2020-11-20T05:00:00Z	Viral Quiz Identity Theft ⌘ https://xkcd.com/2388/
2020-11-23T05:00:00Z	Unread ⌘ https://xkcd.com/2389/
2020-11-25T05:00:00Z	Linguists ⌘ https://xkcd.com/2390/
2020-11-27T05:00:00Z	Life Before the Pandemic ⌘ https://xkcd.com/2391/
2020-11-30T05:00:00Z	Cyber Cafe ⌘ https://xkcd.com/2392/
2020-12-02T05:00:00Z	Presidential Middle Names ⌘ https://xkcd.com/2393/
2020-12-04T05:00:00Z	Contiguous 41 States ⌘ https://xkcd.com/2394/
2020-12-07T05:00:00Z	Covid Precaution Level ⌘ https://xkcd.com/2395/
2020-12-09T05:00:00Z	Wonder Woman 1984 ⌘ https://xkcd.com/2396/
2020-12-11T05:00:00Z	I Just Don't Trust Them ⌘ https://xkcd.com/2397/
2020-12-14T05:00:00Z	Vaccine Tracker ⌘ https://xkcd.com/2398/
2020-12-16T05:00:00Z	2020 Election Map ⌘ https://xkcd.com/2399/
2020-12-18T05:00:00Z	Statistics ⌘ https://xkcd.com/2400/
2020-12-21T05:00:00Z	Conjunction ⌘ https://xkcd.com/2401/
2020-12-23T05:00:00Z	Into My Veins ⌘ https://xkcd.com/2402/
2020-12-25T05:00:00Z	Wrapping Paper ⌘ https://xkcd.com/2403/
2020-12-28T05:00:00Z	First Thing ⌘ [Read more...](https://xkcd.com/2404/)
2020-12-30T05:00:00Z	Flash Gatsby ⌘ [Read more...](https://xkcd.com/2405/)
2021-01-01T05:00:00Z	Viral Vector Immunity ⌘ [Read more...](https://xkcd.com/2406/)
2021-01-04T05:00:00Z	Depth and Breadth ⌘ [Read more...](https://xkcd.com/2407/)
2021-01-06T05:00:00Z	Egg Strategies ⌘ [Read more...](https://xkcd.com/2408/)
2021-01-08T05:00:00Z	Steepen the Curve ⌘ [Read more...](https://xkcd.com/2409/)
2021-01-11T05:00:00Z	Apple Growers ⌘ [Read more...](https://xkcd.com/2410/)
2021-01-13T05:00:00Z	1/10,000th Scale World ⌘ [Read more...](https://xkcd.com/2411/)
2021-01-15T05:00:00Z	1/100,000th Scale World ⌘ [Read more...](https://xkcd.com/2412/)
2021-01-18T05:00:00Z	Pulsar Analogy ⌘ [Read more...](https://xkcd.com/2413/)
2021-01-20T05:00:00Z	Solar System Compression Artifacts ⌘ [Read more...](https://xkcd.com/2414/)
2021-01-22T05:00:00Z	Allow Captcha ⌘ [Read more...](https://xkcd.com/2415/)
2021-01-25T05:00:00Z	Trash Compactor Party ⌘ [Read more...](https://xkcd.com/2416/)
2021-01-27T05:00:00Z	1/1,000th Scale World ⌘ [Read more...](https://xkcd.com/2417/)
2021-01-29T05:00:00Z	Metacarcinization ⌘ [Read more...](https://xkcd.com/2418/)
2021-02-01T05:00:00Z	Hug Count ⌘ [Read more...](https://xkcd.com/2419/)
2021-02-03T05:00:00Z	Appliances ⌘ [Read more...](https://xkcd.com/2420/)
2021-02-05T05:00:00Z	Tower of Babel ⌘ [Read more...](https://xkcd.com/2421/)
2021-02-08T05:00:00Z	Vaccine Ordering ⌘ [Read more...](https://xkcd.com/2422/)
2021-02-10T05:00:00Z	Project Orion ⌘ [Read more...](https://xkcd.com/2423/)
2021-02-12T05:00:00Z	Normal Conversation ⌘ [Read more...](https://xkcd.com/2424/)
2021-02-15T05:00:00Z	mRNA Vaccine ⌘ [Read more...](https://xkcd.com/2425/)
2021-02-17T05:00:00Z	Animal Songs ⌘ [Read more...](https://xkcd.com/2426/)
2021-02-19T05:00:00Z	Perseverance Microphones ⌘ [Read more...](https://xkcd.com/2427/)
2021-02-22T05:00:00Z	Mars Landing Video ⌘ [Read more...](https://xkcd.com/2428/)
2021-02-24T05:00:00Z	Exposure Models ⌘ [Read more...](https://xkcd.com/2429/)
2021-02-26T05:00:00Z	Post-Pandemic Hat ⌘ [Read more...](https://xkcd.com/2430/)
2021-03-01T05:00:00Z	Leap Year 2021 ⌘ [Read more...](https://xkcd.com/2431/)
2021-03-03T05:00:00Z	Manage Your Preferences ⌘ [Read more...](https://xkcd.com/2432/)
2021-03-05T05:00:00Z	Mars Rovers ⌘ [Read more...](https://xkcd.com/2433/)
2021-03-08T05:00:00Z	Vaccine Guidance ⌘ [Read more...](https://xkcd.com/2434/)
2021-03-10T05:00:00Z	Geothmetic Meandian ⌘ [Read more...](https://xkcd.com/2435/)
2021-03-12T05:00:00Z	Circles ⌘ [Read more...](https://xkcd.com/2436/)
2021-03-15T04:00:00Z	Post-Vaccine Party ⌘ [Read more...](https://xkcd.com/2437/)
2021-03-17T04:00:00Z	Siri ⌘ [Read more...](https://xkcd.com/2438/)
2021-03-19T04:00:00Z	Solar System Cartogram ⌘ [Read more...](https://xkcd.com/2439/)
2021-03-22T04:00:00Z	Epistemic Uncertainty ⌘ [Read more...](https://xkcd.com/2440/)
2021-03-24T04:00:00Z	IMDb Vaccines ⌘ [Read more...](https://xkcd.com/2441/)
2021-03-26T04:00:00Z	Mask Opinions ⌘ [Read more...](https://xkcd.com/2442/)
2021-03-29T04:00:00Z	Immune Response ⌘ [Read more...](https://xkcd.com/2443/)
2021-03-31T04:00:00Z	Ingenuity ⌘ [Read more...](https://xkcd.com/2444/)
2021-04-01T04:00:00Z	Checkbox ⌘ [Read more...](https://xkcd.com/2445/)
2021-04-05T04:00:00Z	Spike Proteins ⌘ [Read more...](https://xkcd.com/2446/)
2021-04-07T04:00:00Z	Hammer Incident ⌘ [Read more...](https://xkcd.com/2447/)
2021-04-09T04:00:00Z	Eradication ⌘ [Read more...](https://xkcd.com/2448/)
2021-04-12T04:00:00Z	ISS Vaccine ⌘ [Read more...](https://xkcd.com/2449/)
2021-04-14T04:00:00Z	Post Vaccine Social Scheduling ⌘ [Read more...](https://xkcd.com/2450/)
2021-04-16T04:00:00Z	AI Methodology ⌘ [Read more...](https://xkcd.com/2451/)
2021-04-19T04:00:00Z	Aviation Firsts ⌘ [Read more...](https://xkcd.com/2452/)
2021-04-21T04:00:00Z	Excel Lambda ⌘ [Read more...](https://xkcd.com/2453/)
2021-04-23T04:00:00Z	Fully Vaccinated ⌘ [Read more...](https://xkcd.com/2454/)
2021-04-26T04:00:00Z	Virus Consulting ⌘ [Read more...](https://xkcd.com/2455/)
2021-04-28T04:00:00Z	Types of Scientific Paper ⌘ [Read more...](https://xkcd.com/2456/)
2021-04-30T04:00:00Z	After the Pandemic ⌘ [Read more...](https://xkcd.com/2457/)
2021-05-03T04:00:00Z	Bubble Wrap ⌘ [Read more...](https://xkcd.com/2458/)
2021-05-05T04:00:00Z	March 2020 ⌘ [Read more...](https://xkcd.com/2459/)
2021-05-07T04:00:00Z	Vaccinated ⌘ [Read more...](https://xkcd.com/2460/)
2021-05-10T04:00:00Z	90's Kid Space Program ⌘ [Read more...](https://xkcd.com/2461/)
2021-05-12T04:00:00Z	NASA Award ⌘ [Read more...](https://xkcd.com/2462/)
2021-05-14T04:00:00Z	Astrophotography ⌘ [Read more...](https://xkcd.com/2463/)
2021-05-17T04:00:00Z	Muller's Ratchet ⌘ [Read more...](https://xkcd.com/2464/)
2021-05-19T04:00:00Z	Dimensional Chess ⌘ [Read more...](https://xkcd.com/2465/)
2021-05-21T04:00:00Z	In Your Classroom ⌘ [Read more...](https://xkcd.com/2466/)
2021-05-24T04:00:00Z	Wikipedia Caltrops ⌘ [Read more...](https://xkcd.com/2467/)
2021-05-26T04:00:00Z	Inheritance ⌘ [Read more...](https://xkcd.com/2468/)
2021-05-28T04:00:00Z	Astronomy Status Board ⌘ [Read more...](https://xkcd.com/2469/)
2021-05-31T04:00:00Z	Next Slide Please ⌘ [Read more...](https://xkcd.com/2470/)
2021-06-02T04:00:00Z	Hippo Attacks ⌘ [Read more...](https://xkcd.com/2471/)
2021-06-04T04:00:00Z	Fuzzy Blob ⌘ [Read more...](https://xkcd.com/2472/)
2021-06-07T04:00:00Z	Product Launch ⌘ [Read more...](https://xkcd.com/2473/)
2021-06-09T04:00:00Z	First Time Since Early 2020 ⌘ [Read more...](https://xkcd.com/2474/)
2021-06-11T04:00:00Z	Health Drink ⌘ [Read more...](https://xkcd.com/2475/)
2021-06-14T04:00:00Z	Base Rate ⌘ [Read more...](https://xkcd.com/2476/)
2021-06-16T04:00:00Z	Alien Visitors ⌘ [Read more...](https://xkcd.com/2477/)
2021-06-18T04:00:00Z	Alien Visitors 2 ⌘ [Read more...](https://xkcd.com/2478/)
2021-06-21T04:00:00Z	Houseguests ⌘ [Read more...](https://xkcd.com/2479/)
2021-06-23T04:00:00Z	No, The Other One ⌘ [Read more...](https://xkcd.com/2480/)
2021-06-25T04:00:00Z	1991 and 2021 ⌘ [Read more...](https://xkcd.com/2481/)
2021-06-28T04:00:00Z	Indoor Socializing ⌘ [Read more...](https://xkcd.com/2482/)
2021-06-30T04:00:00Z	Linked List Interview Problem ⌘ [Read more...](https://xkcd.com/2483/)
2021-07-02T04:00:00Z	H-alpha ⌘ [Read more...](https://xkcd.com/2484/)
2021-07-05T04:00:00Z	Nightmare Code ⌘ [Read more...](https://xkcd.com/2485/)
2021-07-07T04:00:00Z	Board Game Party Schedule ⌘ [Read more...](https://xkcd.com/2486/)
2021-07-09T04:00:00Z	Danger Mnemonic ⌘ [Read more...](https://xkcd.com/2487/)
2021-07-12T04:00:00Z	Board Game Argument: Legacy ⌘ [Read more...](https://xkcd.com/2488/)
2021-07-14T04:00:00Z	Bad Map Projection: The Greenland Special ⌘ [Read more...](https://xkcd.com/2489/)
2021-07-16T04:00:00Z	Pre-Pandemic Ketchup ⌘ [Read more...](https://xkcd.com/2490/)
2021-07-19T04:00:00Z	Immune Factory ⌘ [Read more...](https://xkcd.com/2491/)
2021-07-21T04:00:00Z	Commonly Mispronounced Equations ⌘ [Read more...](https://xkcd.com/2492/)
2021-07-23T04:00:00Z	Dual USB-C ⌘ [Read more...](https://xkcd.com/2493/)
2021-07-26T04:00:00Z	Flawed Data ⌘ [Read more...](https://xkcd.com/2494/)
2021-07-28T04:00:00Z	Universal Seat Belt ⌘ [Read more...](https://xkcd.com/2495/)
2021-07-30T04:00:00Z	Mine Captcha ⌘ [Read more...](https://xkcd.com/2496/)
2021-08-02T04:00:00Z	Logic Gates ⌘ [Read more...](https://xkcd.com/2497/)
2021-08-04T04:00:00Z	Forest Walk ⌘ [Read more...](https://xkcd.com/2498/)
2021-08-06T04:00:00Z	Abandonment Function ⌘ [Read more...](https://xkcd.com/2499/)
2021-08-09T04:00:00Z	**Global Temperature Over My Lifetime**
![I was really impressed by the accuracy of some of the report's predictions about fossil fuel consumption. Then I realized, oh, right, of course.](https://imgs.xkcd.com/comics/global_temperature_over_my_lifetime.png) ⌘ [Read more](https://xkcd.com/2500/)
2021-08-11T04:00:00Z	**Average Familiarity**
![How could anyone consider themselves a well-rounded adult without a basic understanding of silicate geochemistry? Silicates are everywhere! It's hard to throw a rock without throwing one!](https://imgs.xkcd.com/comics/average_familiarity.png) ⌘ [Read more](https://xkcd.com/2501/)
2021-08-13T04:00:00Z	**Every Data Table**
![I'm hoping 2022 is relatively normal because I don't know what symbol comes after the asterisk and the dagger.](https://imgs.xkcd.com/comics/every_data_table.png) ⌘ [Read more](https://xkcd.com/2502/)
2021-08-16T04:00:00Z	**Memo Spike Connector**
![Backward-compatible with many existing cables, and can connect directly to phones or tablets if you press them down hard enough.](https://imgs.xkcd.com/comics/memo_spike_connector.png) ⌘ [Read more](https://xkcd.com/2503/)
2021-08-18T04:00:00Z	**Fissile Raspberry Isotopes**
![Grandma's shelf-stable blackberry pie meson recipe was a huge seller until her farm was shut down by a joint FDA/NRC investigation.](https://imgs.xkcd.com/comics/fissile_raspberry_isotopes.png) ⌘ [Read more](https://xkcd.com/2504/)
2021-08-20T04:00:00Z	**News Story Reaction**
![Unless the next line is, "After we broke up, she blamed the painting and spent years planning her revenge, so my sorrow is mixed with relief that the dogs at least denied her that triumph."](https://imgs.xkcd.com/comics/news_story_reaction.png) ⌘ [Read more](https://xkcd.com/2505/)
2021-08-23T04:00:00Z	**Projecting**
![This is something we all need to work on, but especially you all.](https://imgs.xkcd.com/comics/projecting.png) ⌘ [Read more](https://xkcd.com/2506/)
2021-08-25T04:00:00Z	**USV-C**
![Ultra-Serial Violet C light is unpolarized, so you don't have to flip the polarizing filter over when you get the orientation wrong the first time.](https://imgs.xkcd.com/comics/usv_c.png) ⌘ [Read more](https://xkcd.com/2507/)
2021-08-27T04:00:00Z	**Circumappendiceal Somectomy**
![Some personal news: After treating my first case a few years ago with antibiotics, I can report that I have now had appendicitis for the second and--unless something extremely unexpected happened with the surgery--final time.](https://imgs.xkcd.com/comics/circumappendiceal_somectomy.png) ⌘ [Read more](https://xkcd.com/2508/)
2021-08-30T04:00:00Z	**Useful Geometry Formulas**
![Geometry textbooks always try to trick you by adding decorative stripes and dotted lines.](https://imgs.xkcd.com/comics/useful_geometry_formulas.png) ⌘ [Read more](https://xkcd.com/2509/)
2021-09-01T04:00:00Z	**Modern Tools**
![I tried to train an AI to repair my Python environment but it kept giving up and deleting itself.](https://imgs.xkcd.com/comics/modern_tools.png) ⌘ [Read more](https://xkcd.com/2510/)
2021-09-03T04:00:00Z	**Recreate the Conditions**
![We've almost finished constructing the piña collider.](https://imgs.xkcd.com/comics/recreate_the_conditions.png) ⌘ [Read more](https://xkcd.com/2511/)
2021-09-06T04:00:00Z	**Revelation**
![And the heaven departed as a scroll when it is rolled together, but then more heaven kept appearing to replace it, as if the scroll was infinite.](https://imgs.xkcd.com/comics/revelation.png) ⌘ [Read more](https://xkcd.com/2512/)
2021-09-08T04:00:00Z	**Saturn Hexagon**
![Sorry, in SI units that's "there's a big football in there."](https://imgs.xkcd.com/comics/saturn_hexagon.png) ⌘ [Read more](https://xkcd.com/2513/)
2021-09-10T04:00:00Z	**Lab Equipment**
![I've been working on chocolate bar annealing techniques to try to produce the perfect laser s'more. Maybe don't mention that on the grant application though.](https://imgs.xkcd.com/comics/lab_equipment.png) ⌘ [Read more](https://xkcd.com/2514/)
2021-09-13T04:00:00Z	**Vaccine Research**
![Honestly feel a little sheepish about the amount of time and effort I spent confirming "yes, the vaccine helps protect people from getting sick and dying" but I guess everyone needs a hobby.](https://imgs.xkcd.com/comics/vaccine_research.png) ⌘ [Read more](https://xkcd.com/2515/)
2021-09-15T04:00:00Z	**Hubble Tension**
![Oh, wait, I might've had it set to kph instead of mph. But that would make the discrepancy even wider!](https://imgs.xkcd.com/comics/hubble_tension.png) ⌘ [Read more](https://xkcd.com/2516/)
2021-09-17T04:00:00Z	**Rover Replies**
![I'm so glad NASA let you take your phone to Mars!](https://imgs.xkcd.com/comics/rover_replies.png) ⌘ [Read more](https://xkcd.com/2517/)
2021-09-20T04:00:00Z	**Lumpers and Splitters**
![Anna Karenina is a happy family lumper and unhappy family splitter.](https://imgs.xkcd.com/comics/lumpers_and_splitters.png) ⌘ [Read more](https://xkcd.com/2518/)
2021-09-22T04:00:00Z	**Sloped Border**
!["The slope will be 74° at ground level." "Okay, I think we can hack together a  ... wait, why did they specify ground level? It's 74° everywhere, right? ... Oh no, there's a whole section in the treaty labeled 'curvature.'"](https://imgs.xkcd.com/comics/sloped_border.png) ⌘ [Read more](https://xkcd.com/2519/)
2021-09-24T04:00:00Z	**Symbols**
!["röntgen" and "rem" are 20th-century physics terms that mean "no trespassing."](https://imgs.xkcd.com/comics/symbols.png) ⌘ [Read more](https://xkcd.com/2520/)
2021-09-27T04:00:00Z	**Toothpaste**
!["9 out of 10 dentists have banned me from their offices."](https://imgs.xkcd.com/comics/toothpaste.png) ⌘ [Read more](https://xkcd.com/2521/)
2021-09-29T04:00:00Z	**Two-Factor Security Key**
![The bruises on my fingertips are my proof of work.](https://imgs.xkcd.com/comics/two_factor-security_key.png) ⌘ [Read more](https://xkcd.com/2522/)
2021-10-01T04:00:00Z	**Endangered**
![The list includes polio, Guinea worm, and this one particular enterovirus strain that they've been tracking out of spite after it went around the lab a few years ago.](https://imgs.xkcd.com/comics/endangered.png) ⌘ [Read more](https://xkcd.com/2523/)
2021-10-04T04:00:00Z	**Comet Visitor**
![It's a myth that the Great Wall of China is the only human-made structure visible from space--there are LOTS of structures for us to feel self-conscious about!](https://imgs.xkcd.com/comics/comet_visitor.png) ⌘ [Read more](https://xkcd.com/2524/)
2021-10-06T04:00:00Z	**Air Travel Packing List**
![I know the etiquette is controversial, but I think it's rude when the person in front of me reclines their seat into the bell of my trumpet.](https://imgs.xkcd.com/comics/air_travel_packing_list.png) ⌘ [Read more](https://xkcd.com/2525/)
2021-10-08T04:00:00Z	**Tsp vs Tbsp**
![It's like one teraspoon / when all you need is a kilonife](https://imgs.xkcd.com/comics/tsp_vs_tbsp.png) ⌘ [Read more](https://xkcd.com/2526/)
2021-10-11T04:00:00Z	**New Nobel Prizes**
![They've endowed a separate prize in Physiology or Medicine or Stopping Dr. Adams.](https://imgs.xkcd.com/comics/new_nobel_prizes.png) ⌘ [Read more](https://xkcd.com/2527/)
2021-10-13T04:00:00Z	**Flag Map Sabotage**
![Delaware hopes to explore the western edge of areas marked with the Belgian flag, once the tornadoes die down.](https://imgs.xkcd.com/comics/flag_map_sabotage.png) ⌘ [Read more](https://xkcd.com/2528/)
2021-10-15T04:00:00Z	**Unsolved Math Problems**
![After decades of studying the curve and the procedure that generates it, the consensus explanation is "it's just like that."](https://imgs.xkcd.com/comics/unsolved_math_problems.png) ⌘ [Read more](https://xkcd.com/2529/)
2021-10-18T04:00:00Z	**Clinical Trials**
![We don't need to do a clinical trial of this change because the standard of care is to adopt new ideas without doing clinical trials.](https://imgs.xkcd.com/comics/clinical_trials.png) ⌘ [Read more](https://xkcd.com/2530/)
2021-10-20T04:00:00Z	**Dark Arts**
![You think, 'okay, THIS is an ideal use case for hardlinks!' but then 6 months later you're doing some extremely cursed Google search like 'javascript ext4' and wondering where things went wrong.](https://imgs.xkcd.com/comics/dark_arts.png) ⌘ [Read more](https://xkcd.com/2531/)
2021-10-22T04:00:00Z	**Censored Vaccine Card**
![CVS's pharmacies are fine, but I much prefer their [censored]s.](https://imgs.xkcd.com/comics/censored_vaccine_card.png) ⌘ [Read more](https://xkcd.com/2532/)
2021-10-25T04:00:00Z	**Slope Hypothesis Testing**
!["What? I can't hear--" "What? I said, are you sure--" "CAN YOU PLEASE SPEAK--"](https://imgs.xkcd.com/comics/slope_hypothesis_testing.png) ⌘ [Read more](https://xkcd.com/2533/)
2021-10-27T04:00:00Z	**Retractible Rocket**
![Hard to believe that for so many years once they were fully extended we just let them tip over.](https://imgs.xkcd.com/comics/retractible_rocket.png) ⌘ [Read more](https://xkcd.com/2534/)
2021-10-29T04:00:00Z	**Common Cold Viruses**
!["It's not an influenza, but the onset has notes of the '09 H1N1 strain." "Ah yes, that was a good year for H1N1."](https://imgs.xkcd.com/comics/common_cold_viruses.png) ⌘ [Read more](https://xkcd.com/2535/)
2021-11-01T04:00:00Z	**Wirecutter**
![This was always going to be a controversial Wirecutter post, but what really got them in trouble were their 'budget' and 'upgrade' picks.](https://imgs.xkcd.com/comics/wirecutter.png) ⌘ [Read more](https://xkcd.com/2536/)
2021-11-03T04:00:00Z	**Painbow Award**
![This year, our team took home the dark blue ribbon, better than the midnight blue we got last year but still short of the winning navy blue.](https://imgs.xkcd.com/comics/painbow_award.png) ⌘ [Read more](https://xkcd.com/2537/)
2021-11-05T04:00:00Z	**Snack**
![Although grad students, suddenly reminded that food exists, tend to just grab and devour both without further discussion.](https://imgs.xkcd.com/comics/snack.png) ⌘ [Read more](https://xkcd.com/2538/)
2021-11-08T05:00:00Z	**Flinch**
![Premed: "Does this count for a physics credit? Can we shorten the string so I can get it done faster? And can we do one where it hits me in the face? I gotta do a thing for first aid training right after."](https://imgs.xkcd.com/comics/flinch.png) ⌘ [Read more](https://xkcd.com/2539/)
2021-11-10T05:00:00Z	**TTSLTSWBD**
![Tomorrow's sessions will be entirely devoted to sewing machine rotary hooks.](https://imgs.xkcd.com/comics/ttsltswbd.png) ⌘ [Read more](https://xkcd.com/2540/)
2021-11-12T05:00:00Z	**Occam**
![Oh no, Murphy just picked up the razor.](https://imgs.xkcd.com/comics/occam.png) ⌘ [Read more](https://xkcd.com/2541/)
2021-11-15T05:00:00Z	**Daylight Calendar**
![Could be worse. In some towns north of here, it's already December, and the 21st will last for nearly a week.](https://imgs.xkcd.com/comics/daylight_calendar.png) ⌘ [Read more](https://xkcd.com/2542/)
2021-11-17T05:00:00Z	**Never Told Anyone**
![Even if you said you were an employee of the website, if you asked for my password, I'd tell you.](https://imgs.xkcd.com/comics/never_told_anyone.png) ⌘ [Read more](https://xkcd.com/2543/)
2021-11-19T05:00:00Z	**Heart-Stopping Texts**
![Was this your car? [looping 'image loading' animation]](https://imgs.xkcd.com/comics/heart_stopping_texts.png) ⌘ [Read more](https://xkcd.com/2544/)
2021-11-22T05:00:00Z	**Bayes' Theorem**
![P((B](https://imgs.xkcd.com/comics/bayes_theorem.png) ⌘ [Read more](https://xkcd.com/2545/)
2021-11-24T05:00:00Z	**Fiction vs Nonfiction**
![The real challenge is how to file Boba Fett's biography of Doris Kearns Goodwin.](https://imgs.xkcd.com/comics/fiction_vs_nonfiction.png) ⌘ [Read more](https://xkcd.com/2546/)
2021-11-26T05:00:00Z	**Siren**
![Directions from CITY OF TROY to ITHACA / Total time: 10y 54d 14h 25m / Warning: Route crosses an international border / route includes capture by the goddess Calypso / route includes a ferry](https://imgs.xkcd.com/comics/siren.png) ⌘ [Read more](https://xkcd.com/2547/)
2021-11-29T05:00:00Z	**Awful People**
![Hm, this burger place has a couple of good reviews, but LakeSlayer7 says he got food poisoning there and everyone should try this other place down by the lake instead.](https://imgs.xkcd.com/comics/awful_people.png) ⌘ [Read more](https://xkcd.com/2548/)
2021-12-01T05:00:00Z	**Edge Cake**
![Every time IERS adds or removes a leap second, they send me a birthday cake out of superstition.](https://imgs.xkcd.com/comics/edge_cake.png) ⌘ [Read more](https://xkcd.com/2549/)
2021-12-03T05:00:00Z	**Webb**
![Each one contains a chocolate shaped like a famous spacecraft and, for the later numbers, a pamphlet on managing anxiety.](https://imgs.xkcd.com/comics/webb.png) ⌘ [Read more](https://xkcd.com/2550/)
2021-12-06T05:00:00Z	**Debunking**
![Mark Zuckerberg has only neutral feelings toward Peppa Pig, who he understands is a fictional character, and he blames the coronavirus pandemic on other factors.](https://imgs.xkcd.com/comics/debunking.png) ⌘ [Read more](https://xkcd.com/2551/)
2021-12-08T05:00:00Z	**The Last Molecule**
![Biology is really struggling; they're barely at 93% and they keep finding more ants.](https://imgs.xkcd.com/comics/the_last_molecule.png) ⌘ [Read more](https://xkcd.com/2552/)
2021-12-10T05:00:00Z	**Incident Report**
![Increasing-precision timestamps are the Jaws theme of incident reports.](https://imgs.xkcd.com/comics/incident_report.png) ⌘ [Read more](https://xkcd.com/2553/)
2021-12-13T05:00:00Z	**Gift Exchange**
![In addition to having all their budgets in a spreadsheet with consistent formatting, they just love expressing preferences on a well-calibrated numerical scale.](https://imgs.xkcd.com/comics/gift_exchange.png) ⌘ [Read more](https://xkcd.com/2554/)
2021-12-15T05:00:00Z	**Notifications**
![It's 10:34 PM for this user. They really need to get going, they have a thing early tomorrow. Are you sure you want to notify?](https://imgs.xkcd.com/comics/notifications.png) ⌘ [Read more](https://xkcd.com/2555/)
2021-12-17T05:00:00Z	**Turing Complete**
![Thanks to the ForcedEntry exploit, your company's entire tech stack can now be hosted out of a PDF you texted to someone.](https://imgs.xkcd.com/comics/turing_complete.png) ⌘ [Read more](https://xkcd.com/2556/)
2021-12-20T05:00:00Z	**Immunity**
![This plan may sound appealing to people who know a little about the immune system, but the drawbacks are clear to people who know a lot about the immune system and also to people who don't know anything about it.](https://imgs.xkcd.com/comics/immunity.png) ⌘ [Read more](https://xkcd.com/2557/)
2021-12-22T05:00:00Z	**Rapid Test Results**
![A solid red area with two white lines means that you have been infected with the anti-coronavirus, COVID+19, which will cure anyone you have close contact with.](https://imgs.xkcd.com/comics/rapid_test_results.png) ⌘ [Read more](https://xkcd.com/2558/)
2021-12-24T05:00:00Z	**December 25th Launch**
![Update: Santa has been destroyed by the range safety officer.](https://imgs.xkcd.com/comics/december_25th_launch.png) ⌘ [Read more](https://xkcd.com/2559/)
2021-12-27T05:00:00Z	**Confounding Variables**
![You can find a perfect correlation if you just control for the residual.](https://imgs.xkcd.com/comics/confounding_variables.png) ⌘ [Read more](https://xkcd.com/2560/)
2021-12-29T05:00:00Z	**Moonfall**
![Novel ideas and cool explosions are both good, but what I really want from a movie is novel ideas ABOUT cool explosions.](https://imgs.xkcd.com/comics/moonfall.png) ⌘ [Read more](https://xkcd.com/2561/)
2021-12-31T05:00:00Z	**Formatting Meeting**
![Neither group uses iso 8601 because the big-endian enthusiasts were all at the meeting 20 years ago.](https://imgs.xkcd.com/comics/formatting_meeting.png) ⌘ [Read more](https://xkcd.com/2562/)
2022-01-03T05:00:00Z	**Throat and Nasal Passages**
![I always felt like what the 'you are now aware of your tongue' thing neeeded in order to be truly enjoyable was an element of mortal peril.](https://imgs.xkcd.com/comics/throat_and_nasal_passages.png) ⌘ [Read more](https://xkcd.com/2563/)
2022-01-05T05:00:00Z	**Sunshield**
![RIP the surface of Mars](https://imgs.xkcd.com/comics/sunshield.png) ⌘ [Read more](https://xkcd.com/2564/)
2022-01-07T05:00:00Z	**Latency**
![Each SCAPDFATIAT point increases the chance that the process will involve the phrase 'by the next business day.'](https://imgs.xkcd.com/comics/latency.png) ⌘ [Read more](https://xkcd.com/2565/)
2022-01-10T05:00:00Z	**Decorative Constants**
![Arguably, the '1/2' in the drag equation is purely decorative, since drag coefficients are already unitless and could just as easily be half as big. Some derivations give more justification for the extra 1/2 than others, but one textbook just calls it 'a traditional tribute to Euler and Bernoulli.'](https://imgs.xkcd.com/comics/decorative_constants.png) ⌘ [Read more](https://xkcd.com/2566/)
2022-01-12T05:00:00Z	**Language Development**
![The worst is the Terrible Twos, when they're always throwing things and shrieking, "forsooth, to bed thou shalt not take me, cur!"](https://imgs.xkcd.com/comics/language_development.png) ⌘ [Read more](https://xkcd.com/2567/)
2022-01-14T05:00:00Z	**Spinthariscope**
![Other high scorers are melt-in-your-hand aluminum-destroying gallium and tritium-powered glowsticks. Lawn darts are toward the other end.](https://imgs.xkcd.com/comics/spinthariscope.png) ⌘ [Read more](https://xkcd.com/2568/)
2022-01-17T05:00:00Z	**Hypothesis Generation**
![Frazzled scientists are requesting that everyone please stop generating hypotheses for a little bit while they work through the backlog.](https://imgs.xkcd.com/comics/hypothesis_generation.png) ⌘ [Read more](https://xkcd.com/2569/)
2022-01-19T05:00:00Z	**Captain Picard Tea Order**
![We can ask the Earl for his order once he's fully extruded from the dispenser.](https://imgs.xkcd.com/comics/captain_picard_tea_order.png) ⌘ [Read more](https://xkcd.com/2570/)
2022-01-21T05:00:00Z	**Hydraulic Analogy**
![Current (water) running through the water (wires) causes it to boil, increasing the pressure (voltage), but resisting (impeding) the flow of hydroelectricity (water currents). This is the basis for Ohm's law.](https://imgs.xkcd.com/comics/hydraulic_analogy.png) ⌘ [Read more](https://xkcd.com/2571/)
2022-01-24T05:00:00Z	**Alien Observers**
![ALERT: Human 910-25J-1Q38 has created a Youtube channel. Increase erratic jerkiness of flying by 30% until safely out of range.](https://imgs.xkcd.com/comics/alien_observers.png) ⌘ [Read more](https://xkcd.com/2572/)